SE90729C1 - - Google Patents
Info
- Publication number
- SE90729C1 SE90729C1 SE485735A SE485735A SE90729C1 SE 90729 C1 SE90729 C1 SE 90729C1 SE 485735 A SE485735 A SE 485735A SE 485735 A SE485735 A SE 485735A SE 90729 C1 SE90729 C1 SE 90729C1
- Authority
- SE
- Sweden
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
- H04M17/023—Circuit arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE485735A SE90729C1 (en:Method) | 1935-11-18 | 1935-11-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE485735A SE90729C1 (en:Method) | 1935-11-18 | 1935-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE90729C1 true SE90729C1 (en:Method) | 1937-11-09 |
Family
ID=70779128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE485735A SE90729C1 (en:Method) | 1935-11-18 | 1935-11-18 |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE90729C1 (en:Method) |
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1935
- 1935-11-18 SE SE485735A patent/SE90729C1/xx unknown