FR571638A - Telephone receiver - Google Patents
Telephone receiverInfo
- Publication number
- FR571638A FR571638A FR571638DA FR571638A FR 571638 A FR571638 A FR 571638A FR 571638D A FR571638D A FR 571638DA FR 571638 A FR571638 A FR 571638A
- 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
- H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
- H04R13/02—Telephone receivers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1408123A GB220990A (en) | 1923-05-28 | 1923-05-28 | Improvements in or relating to telephonic receivers |
Publications (1)
Publication Number | Publication Date |
---|---|
FR571638A true FR571638A (en) | 1924-05-21 |
Family
ID=10034636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR571638D Expired FR571638A (en) | 1923-05-28 | 1923-10-08 | Telephone receiver |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR571638A (en) |
GB (1) | GB220990A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8295537B2 (en) | 2010-03-31 | 2012-10-23 | Bose Corporation | Loudspeaker moment and torque balancing |
US8295536B2 (en) | 2010-03-31 | 2012-10-23 | Bose Corporation | Moving magnet levered loudspeaker |
US9055370B2 (en) | 2012-08-31 | 2015-06-09 | Bose Corporation | Vibration-reducing passive radiators |
-
1923
- 1923-05-28 GB GB1408123A patent/GB220990A/en not_active Expired
- 1923-10-08 FR FR571638D patent/FR571638A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB220990A (en) | 1924-08-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR571638A (en) | Telephone receiver | |
FR565621A (en) | Receiver reel | |
FR579550A (en) | Telephone receiver | |
FR586118A (en) | Telephone receiver | |
FR574642A (en) | Advanced microphone | |
FR586353A (en) | Fixed line | |
FR562932A (en) | Speakerphone | |
FR570746A (en) | Loudspeaker telephone receiver | |
FR565366A (en) | Telephone receiver | |
FR603792A (en) | Telephone receiver | |
FR599981A (en) | Telephone receiver | |
FR599046A (en) | Telephone receiver | |
FR29698E (en) | Loudspeaker telephone | |
FR566542A (en) | Sounder | |
FR584932A (en) | Speakerphone | |
FR604444A (en) | Telephone receiver | |
FR612613A (en) | Telephone receiver | |
FR562727A (en) | Speakerphone | |
CH113061A (en) | Telephone. | |
DK39070C (en) | Telephone system. | |
DK38124C (en) | Telephone system. | |
DK37000C (en) | Telephone system. | |
FR562682A (en) | Soula mobile | |
DK35985C (en) | Microphone. | |
AT96094B (en) | Telephone. |