NL44678C - - Google Patents
Info
- Publication number
- NL44678C NL44678C NL44678DA NL44678C NL 44678 C NL44678 C NL 44678C NL 44678D A NL44678D A NL 44678DA NL 44678 C NL44678 C NL 44678C
- 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
-
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE490660X | 1935-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL44678C true NL44678C (de) |
Family
ID=6544142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL44678D NL44678C (de) | 1935-11-14 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE418363A (de) |
| FR (1) | FR813238A (de) |
| GB (1) | GB490660A (de) |
| NL (1) | NL44678C (de) |
-
0
- NL NL44678D patent/NL44678C/xx active
- BE BE418363D patent/BE418363A/xx unknown
-
1936
- 1936-11-10 FR FR813238D patent/FR813238A/fr not_active Expired
- 1936-11-16 GB GB31355/36A patent/GB490660A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE418363A (de) | |
| GB490660A (en) | 1938-08-16 |
| FR813238A (fr) | 1937-05-28 |