FR558667A - - Google Patents
Info
- Publication number
- FR558667A FR558667A FR558667DA FR558667A FR 558667 A FR558667 A FR 558667A FR 558667D A FR558667D A FR 558667DA FR 558667 A FR558667 A FR 558667A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Prepayment Telephone Systems (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Testing Of Coins (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB33634/21A GB194770A (en) | 1921-12-14 | 1921-12-14 | Improvements in or relating to coin collecting means for telephone services |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR558667A true FR558667A (fr) | 1923-08-31 |
Family
ID=10355437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR558667D Expired FR558667A (fr) | 1921-12-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1593970A (fr) |
| DE (1) | DE466763C (fr) |
| FR (1) | FR558667A (fr) |
| GB (1) | GB194770A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2990930A (en) * | 1956-11-05 | 1961-07-04 | Nat Rejectors Gmbh | Timing devices for coin switches |
-
0
- FR FR558667D patent/FR558667A/fr not_active Expired
-
1921
- 1921-12-14 GB GB33634/21A patent/GB194770A/en not_active Expired
-
1922
- 1922-12-09 US US605975A patent/US1593970A/en not_active Expired - Lifetime
- 1922-12-12 DE DEH92092D patent/DE466763C/de not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2990930A (en) * | 1956-11-05 | 1961-07-04 | Nat Rejectors Gmbh | Timing devices for coin switches |
Also Published As
| Publication number | Publication date |
|---|---|
| DE466763C (de) | 1928-10-16 |
| GB194770A (en) | 1923-03-14 |
| US1593970A (en) | 1926-07-27 |