FR2477812B1 - TELEPHONE HANDSET WITH EARPHONE AND MICROPHONE PROTECTED BY AN INDEVISABLE HOOD - Google Patents
TELEPHONE HANDSET WITH EARPHONE AND MICROPHONE PROTECTED BY AN INDEVISABLE HOODInfo
- 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
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)
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)
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)
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. |
-
1980
- 1980-03-04 FR FR8004807A patent/FR2477812B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2477812A1 (en) | 1981-09-11 |
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