NL36277C - - Google Patents
Info
- Publication number
- NL36277C NL36277C NL36277DA NL36277C NL 36277 C NL36277 C NL 36277C NL 36277D A NL36277D A NL 36277DA NL 36277 C NL36277 C NL 36277C
- Authority
- NL
- Netherlands
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)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB148597D DE615231C (de) | 1931-02-28 | 1931-02-28 | Fernsprechanlagen mit Selbstbelastungseinrichtungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL36277C true NL36277C (US06521211-20030218-C00004.png) |
Family
ID=7001752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL36277D NL36277C (US06521211-20030218-C00004.png) | 1931-02-28 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE615231C (US06521211-20030218-C00004.png) |
| NL (1) | NL36277C (US06521211-20030218-C00004.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE753481C (de) * | 1942-01-29 | 1953-06-08 | Normalzeit G M B H | Muenzfernsprecher |
-
0
- NL NL36277D patent/NL36277C/xx active
-
1931
- 1931-02-28 DE DEB148597D patent/DE615231C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE615231C (de) | 1935-07-03 |
