FR2477812B1 - TELEPHONE HANDSET WITH EARPHONE AND MICROPHONE PROTECTED BY AN INDEVISABLE HOOD - Google Patents

TELEPHONE HANDSET WITH EARPHONE AND MICROPHONE PROTECTED BY AN INDEVISABLE HOOD

Info

Publication number
FR2477812B1
FR2477812B1 FR8004807A FR8004807A FR2477812B1 FR 2477812 B1 FR2477812 B1 FR 2477812B1 FR 8004807 A FR8004807 A FR 8004807A FR 8004807 A FR8004807 A FR 8004807A FR 2477812 B1 FR2477812 B1 FR 2477812B1
Authority
FR
France
Prior art keywords
indevisable
earphone
hood
microphone
protected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR8004807A
Other languages
French (fr)
Other versions
FR2477812A1 (en
Inventor
Patrice Macquaire
Mathias Fernandez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Landis and Gyr AG filed Critical Landis and Gyr AG
Priority to FR8004807A priority Critical patent/FR2477812B1/en
Publication of FR2477812A1 publication Critical patent/FR2477812A1/en
Application granted granted Critical
Publication of FR2477812B1 publication Critical patent/FR2477812B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
FR8004807A 1980-03-04 1980-03-04 TELEPHONE HANDSET WITH EARPHONE AND MICROPHONE PROTECTED BY AN INDEVISABLE HOOD Expired FR2477812B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8004807A FR2477812B1 (en) 1980-03-04 1980-03-04 TELEPHONE HANDSET WITH EARPHONE AND MICROPHONE PROTECTED BY AN INDEVISABLE HOOD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8004807A FR2477812B1 (en) 1980-03-04 1980-03-04 TELEPHONE HANDSET WITH EARPHONE AND MICROPHONE PROTECTED BY AN INDEVISABLE HOOD

Publications (2)

Publication Number Publication Date
FR2477812A1 FR2477812A1 (en) 1981-09-11
FR2477812B1 true FR2477812B1 (en) 1987-11-27

Family

ID=9239289

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8004807A Expired FR2477812B1 (en) 1980-03-04 1980-03-04 TELEPHONE HANDSET WITH EARPHONE AND MICROPHONE PROTECTED BY AN INDEVISABLE HOOD

Country Status (1)

Country Link
FR (1) FR2477812B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4974258A (en) * 1989-07-21 1990-11-27 Raytel, Inc. Vandal-proof handset for a pay telephone

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE387028A (en) * 1931-03-19
US2153426A (en) * 1933-12-18 1939-04-04 Anchor Cap & Closure Corp Sealed package and parts thereof
CH249257A (en) * 1946-05-04 1947-06-15 Siemens Ag Albis Device on locking devices to prevent unauthorized interference.

Also Published As

Publication number Publication date
FR2477812A1 (en) 1981-09-11

Similar Documents

Publication Publication Date Title
GB8419191D0 (en) Voice recognizing telephone call denial
DE3581833D1 (en) MICROPHONE ARRANGEMENT FOR TELEPHONE HANDSET.
BE872351A (en) SPEAKER TELEPHONE STATION
FR2353120A1 (en) UNDERWATER TELEPHONE CABLE
FR2484176B1 (en) TELEPHONE ANSWERING DEVICE WITH ELECTRO-MAGNETIC RECORDING
IT1193912B (en) INTEGRAL TELEPHONE AND MICROPHONE
IT7821471A0 (en) CIRCUIT ARRANGEMENT FOR A TELEPHONE SET EQUIPPED WITH A SPEAKER AND CONTROLLED BY VOICE.
FR2477812B1 (en) TELEPHONE HANDSET WITH EARPHONE AND MICROPHONE PROTECTED BY AN INDEVISABLE HOOD
AU2580577A (en) Voice switched telephone loudspeakers
JPS56115064A (en) Portable telephone answering device
AU499019B2 (en) Telephone ringer attachment
FR2533783B1 (en) EXTENSIBLE TELEPHONE HANDSET
AR221185A1 (en) MANUAL PART OF A TELEPHONE (MICROPHONE)
ATA21383A (en) TELEPHONE MICROPHONE
JPS53114305A (en) Loudspeaking telephone set
HK61379A (en) Telephone microphone
FR2489632B1 (en) IMPROVEMENT IN SPEAKER TELEPHONE DEVICES
CA1031882A (en) Telephone speech network for electronic sidetone suppression
SU646463A1 (en) Telephonic line separating device
FR2490903B1 (en) TELEPHONE HANDSET
JPS5469307A (en) Loudspeaking telephone set
IT1130261B (en) TELEPHONE DEVICE INCORPORATING AN AMPLIFIER INTO THE MICROPHONE
IT8321668V0 (en) TELEPHONE EQUIPMENT WITH KEYBOARD, MICROPHONE AND SQUARE RECEIVER WITH ROUNDED CORNERS.
JPS53146511A (en) Caller identifying telephone set
KR840002490U (en) Telephone handset