BE374978A - - Google Patents
Info
- Publication number
- BE374978A BE374978A BE374978DA BE374978A BE 374978 A BE374978 A BE 374978A BE 374978D A BE374978D A BE 374978DA BE 374978 A BE374978 A BE 374978A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
- H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
- H04M17/026—Constructional features
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE564064T | 1930-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE374978A true BE374978A (en:Method) |
Family
ID=34559087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE374978D BE374978A (en:Method) | 1930-07-01 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE374978A (en:Method) |
| DE (1) | DE564064C (en:Method) |
| FR (1) | FR705857A (en:Method) |
| GB (1) | GB367348A (en:Method) |
-
0
- BE BE374978D patent/BE374978A/xx unknown
-
1930
- 1930-07-01 DE DE1930564064D patent/DE564064C/de not_active Expired
- 1930-11-12 GB GB3412230A patent/GB367348A/en not_active Expired
- 1930-11-18 FR FR705857D patent/FR705857A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB367348A (en) | 1932-02-12 |
| FR705857A (fr) | 1931-06-16 |
| DE564064C (de) | 1933-05-18 |