BE343779A - - Google Patents
Info
- Publication number
- BE343779A BE343779A BE343779DA BE343779A BE 343779 A BE343779 A BE 343779A BE 343779D A BE343779D A BE 343779DA BE 343779 A BE343779 A BE 343779A
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US124232A US1823717A (en) | 1926-07-22 | 1926-07-22 | Telephone recording system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE343779A true BE343779A (it) |
Family
ID=22413599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE343779D BE343779A (it) | 1926-07-22 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1823717A (it) |
| BE (1) | BE343779A (it) |
| FR (1) | FR637861A (it) |
| GB (1) | GB274872A (it) |
-
0
- BE BE343779D patent/BE343779A/xx unknown
-
1926
- 1926-07-22 US US124232A patent/US1823717A/en not_active Expired - Lifetime
-
1927
- 1927-07-18 FR FR637861D patent/FR637861A/fr not_active Expired
- 1927-07-19 GB GB19171/27A patent/GB274872A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR637861A (fr) | 1928-05-10 |
| GB274872A (en) | 1928-06-21 |
| US1823717A (en) | 1931-09-15 |