CH219812A - Telephone. - Google Patents

Telephone.

Info

Publication number
CH219812A
CH219812A CH219812DA CH219812A CH 219812 A CH219812 A CH 219812A CH 219812D A CH219812D A CH 219812DA CH 219812 A CH219812 A CH 219812A
Authority
CH
Switzerland
Prior art keywords
telephone
Prior art date
Application number
Other languages
German (de)
Inventor
A-G Albiswerk Zuerich
Original Assignee
Siemens Ag Albis
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 Siemens Ag Albis filed Critical Siemens Ag Albis
Publication of CH219812A publication Critical patent/CH219812A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/06—Telephone receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
CH219812D 1940-12-23 1940-12-23 Telephone. CH219812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH883805X 1940-12-23

Publications (1)

Publication Number Publication Date
CH219812A true CH219812A (en) 1942-02-28

Family

ID=4545091

Family Applications (1)

Application Number Title Priority Date Filing Date
CH219812D CH219812A (en) 1940-12-23 1940-12-23 Telephone.

Country Status (4)

Country Link
BE (1) BE443899A (en)
CH (1) CH219812A (en)
FR (1) FR883805A (en)
NL (1) NL59387C (en)

Also Published As

Publication number Publication date
FR883805A (en) 1943-07-20
BE443899A (en)
NL59387C (en)

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