BE468417A - - Google Patents
Info
- Publication number
- BE468417A BE468417A BE468417DA BE468417A BE 468417 A BE468417 A BE 468417A BE 468417D A BE468417D A BE 468417DA BE 468417 A BE468417 A BE 468417A
- Authority
- BE
- Belgium
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Telephone Set Structure (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US468605A US2413030A (en) | 1942-12-11 | 1942-12-11 | Cord connector for telephone instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE468417A true BE468417A (en) |
Family
ID=23860479
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE468190D BE468190A (en) | 1942-12-11 | ||
| BE468417D BE468417A (en) | 1942-12-11 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE468190D BE468190A (en) | 1942-12-11 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2413030A (en) |
| BE (2) | BE468417A (en) |
| FR (2) | FR938402A (en) |
| GB (1) | GB564690A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2654834A (en) * | 1949-11-01 | 1953-10-06 | Motorola Inc | Transmit-receive switch |
| EP0861012A1 (en) * | 1997-02-25 | 1998-08-26 | Koninklijke Philips Electronics N.V. | Loudspeaker and telephone apparatus comprising such a loudspeaker |
-
0
- BE BE468190D patent/BE468190A/xx unknown
- BE BE468417D patent/BE468417A/xx unknown
-
1942
- 1942-12-11 US US468605A patent/US2413030A/en not_active Expired - Lifetime
-
1943
- 1943-08-27 GB GB13994/43A patent/GB564690A/en not_active Expired
-
1946
- 1946-03-29 FR FR938402D patent/FR938402A/en not_active Expired
- 1946-04-03 FR FR938221D patent/FR938221A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB564690A (en) | 1944-10-09 |
| US2413030A (en) | 1946-12-24 |
| FR938221A (en) | 1948-09-08 |
| BE468190A (en) | |
| FR938402A (en) | 1948-09-15 |