BE453524A - - Google Patents
Info
- Publication number
- BE453524A BE453524A BE453524DA BE453524A BE 453524 A BE453524 A BE 453524A BE 453524D A BE453524D A BE 453524DA BE 453524 A BE453524 A BE 453524A
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE900294X | 1939-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE453524A true BE453524A (https=) |
Family
ID=6851923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE453524D BE453524A (https=) | 1939-02-11 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE453524A (https=) |
| FR (1) | FR900294A (https=) |
-
0
- BE BE453524D patent/BE453524A/xx unknown
-
1943
- 1943-12-02 FR FR900294D patent/FR900294A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR900294A (fr) | 1945-06-25 |