NL28109C - - Google Patents
Info
- Publication number
- NL28109C NL28109C NL28109DA NL28109C NL 28109 C NL28109 C NL 28109C NL 28109D A NL28109D A NL 28109DA NL 28109 C NL28109 C NL 28109C
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- External Artificial Organs (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE346156T | 1929-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL28109C true NL28109C (de) |
Family
ID=31895173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL28109D NL28109C (de) | 1929-05-30 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE369003A (de) |
| FR (1) | FR691264A (de) |
| GB (1) | GB346156A (de) |
| NL (1) | NL28109C (de) |
-
0
- BE BE369003D patent/BE369003A/xx unknown
- NL NL28109D patent/NL28109C/xx active
-
1930
- 1930-03-06 FR FR691264D patent/FR691264A/fr not_active Expired
- 1930-04-03 GB GB10613/30A patent/GB346156A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR691264A (fr) | 1930-10-20 |
| GB346156A (de) | 1931-04-09 |
| BE369003A (de) |