BE565560A - - Google Patents
Info
- Publication number
- BE565560A BE565560A BE565560DA BE565560A BE 565560 A BE565560 A BE 565560A BE 565560D A BE565560D A BE 565560DA BE 565560 A BE565560 A BE 565560A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
- H04M1/654—Telephone line monitoring circuits therefor, e.g. ring detectors
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US645130A US2881252A (en) | 1957-03-11 | 1957-03-11 | Automatic telephone answering apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE565560A true BE565560A (https=) |
Family
ID=24587754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE565560D BE565560A (https=) | 1957-03-11 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2881252A (https=) |
| BE (1) | BE565560A (https=) |
| GB (1) | GB873028A (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3133992A (en) * | 1958-10-13 | 1964-05-19 | Matthew C Dickman | Automatic answering, recording and reproducing machine |
| CA936984A (en) * | 1969-06-11 | 1973-11-13 | Kosaka Tomoaki | Timer circuit of an automatic telephone answering apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2793252A (en) * | 1952-09-03 | 1957-05-21 | Bell Telephone Labor Inc | Telephone answering and message recording system |
| US2743315A (en) * | 1952-10-23 | 1956-04-24 | Telephone Answering And Record | Control circuits for telephone answering and recording devices |
-
0
- BE BE565560D patent/BE565560A/xx unknown
-
1957
- 1957-03-11 US US645130A patent/US2881252A/en not_active Expired - Lifetime
-
1958
- 1958-03-11 GB GB7819/58A patent/GB873028A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB873028A (en) | 1961-07-19 |
| US2881252A (en) | 1959-04-07 |