NL6617468A - - Google Patents
Info
- Publication number
- NL6617468A NL6617468A NL6617468A NL6617468A NL6617468A NL 6617468 A NL6617468 A NL 6617468A NL 6617468 A NL6617468 A NL 6617468A NL 6617468 A NL6617468 A NL 6617468A NL 6617468 A NL6617468 A NL 6617468A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE16306/65A SE311031B (pt) | 1965-12-16 | 1965-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6617468A true NL6617468A (pt) | 1967-06-19 |
Family
ID=20302031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6617468A NL6617468A (pt) | 1965-12-16 | 1966-12-13 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3461240A (pt) |
| DE (1) | DE1487227A1 (pt) |
| FR (1) | FR1503217A (pt) |
| GB (1) | GB1169906A (pt) |
| NL (1) | NL6617468A (pt) |
| SE (1) | SE311031B (pt) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA862229A (en) * | 1969-12-01 | 1971-01-26 | C. J. Cowpland Michael | Equalizing and anti-sidetone telephone circuit |
| SE339704B (pt) * | 1970-12-22 | 1971-10-18 | Ericsson Telefon Ab L M | |
| US3725585A (en) * | 1972-03-21 | 1973-04-03 | Itt | Loudspeaking telephone station circuit |
| SE365375B (pt) * | 1972-12-18 | 1974-03-18 | Ericsson Telefon Ab L M | |
| US3860756A (en) * | 1973-03-23 | 1975-01-14 | Nitsuko Ltd | Automatic voice-path switching circuit for a speaker phone telephone set |
| JPH063950B2 (ja) * | 1985-02-28 | 1994-01-12 | 株式会社東芝 | 拡声電話装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3146313A (en) * | 1961-06-08 | 1964-08-25 | Ericsson Telefon Ab L M | Amplifier arrangement for loudspeaking telephones |
| SE301502B (pt) * | 1962-07-24 | 1968-06-10 | Gylling & Co Ab |
-
1965
- 1965-12-16 SE SE16306/65A patent/SE311031B/xx unknown
-
1966
- 1966-11-04 GB GB49567/66A patent/GB1169906A/en not_active Expired
- 1966-11-07 US US592504A patent/US3461240A/en not_active Expired - Lifetime
- 1966-12-05 FR FR86094A patent/FR1503217A/fr not_active Expired
- 1966-12-08 DE DE19661487227 patent/DE1487227A1/de active Pending
- 1966-12-13 NL NL6617468A patent/NL6617468A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE311031B (pt) | 1969-05-27 |
| DE1487227A1 (de) | 1969-04-03 |
| GB1169906A (en) | 1969-11-05 |
| US3461240A (en) | 1969-08-12 |
| FR1503217A (fr) | 1967-11-24 |