BE350899A - - Google Patents
Info
- Publication number
- BE350899A BE350899A BE350899DA BE350899A BE 350899 A BE350899 A BE 350899A BE 350899D A BE350899D A BE 350899DA BE 350899 A BE350899 A BE 350899A
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE653547X | 1927-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE350899A true BE350899A (en:Method) |
Family
ID=6581840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE350899D BE350899A (en:Method) | 1927-05-11 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE350899A (en:Method) |
| FR (1) | FR653547A (en:Method) |
| NL (1) | NL25678C (en:Method) |
-
0
- BE BE350899D patent/BE350899A/xx unknown
- NL NL25678D patent/NL25678C/xx active
-
1928
- 1928-04-28 FR FR653547D patent/FR653547A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL25678C (en:Method) | |
| FR653547A (fr) | 1929-03-22 |