FR340435A - Telephone transmitter - Google Patents
Telephone transmitterInfo
- Publication number
- FR340435A FR340435A FR340435DA FR340435A FR 340435 A FR340435 A FR 340435A FR 340435D A FR340435D A FR 340435DA FR 340435 A FR340435 A FR 340435A
- Authority
- FR
- France
- Prior art keywords
- telephone transmitter
- telephone
- transmitter
- 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
- H04R21/00—Variable-resistance transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR340435T | 1904-02-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR340435A true FR340435A (en) | 1904-07-06 |
Family
ID=1389548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR340435D Expired FR340435A (en) | 1904-02-15 | 1904-02-15 | Telephone transmitter |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR340435A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3970804A (en) * | 1974-03-25 | 1976-07-20 | Brien Jerry O | Electro-mechanical amplifier sound transducer |
US5382039A (en) * | 1993-05-24 | 1995-01-17 | Hawker; Michael J. | Suspension device for a seat of a bicycle |
-
1904
- 1904-02-15 FR FR340435D patent/FR340435A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3970804A (en) * | 1974-03-25 | 1976-07-20 | Brien Jerry O | Electro-mechanical amplifier sound transducer |
US5382039A (en) * | 1993-05-24 | 1995-01-17 | Hawker; Michael J. | Suspension device for a seat of a bicycle |
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