FR494283A - Telephone receiver - Google Patents
Telephone receiverInfo
- Publication number
- FR494283A FR494283A FR494283DA FR494283A FR 494283 A FR494283 A FR 494283A FR 494283D A FR494283D A FR 494283DA FR 494283 A FR494283 A FR 494283A
- Authority
- FR
- France
- Prior art keywords
- telephone receiver
- telephone
- receiver
- 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
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/002—Transducers other than those covered by groups H04R9/00 - H04R21/00 using electrothermic-effect transducer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Laminated Bodies (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB224216A GB101996A (en) | 1916-02-15 | 1916-02-15 | An Improved Telephonic Receiver. |
Publications (1)
Publication Number | Publication Date |
---|---|
FR494283A true FR494283A (en) | 1919-09-04 |
Family
ID=32243683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR494283D Expired FR494283A (en) | 1916-02-15 | 1917-02-12 | Telephone receiver |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR494283A (en) |
GB (1) | GB101996A (en) |
-
1916
- 1916-02-15 GB GB224216A patent/GB101996A/en not_active Expired
-
1917
- 1917-02-12 FR FR494283D patent/FR494283A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB101996A (en) | 1916-11-09 |
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