NL7211528A - - Google Patents
Info
- Publication number
- NL7211528A NL7211528A NL7211528A NL7211528A NL7211528A NL 7211528 A NL7211528 A NL 7211528A NL 7211528 A NL7211528 A NL 7211528A NL 7211528 A NL7211528 A NL 7211528A NL 7211528 A NL7211528 A NL 7211528A
- 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
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
- H04M3/64—Arrangements for signalling the number or class of the calling line to the operator
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Meter Arrangements (AREA)
- Prepayment Telephone Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3991271A GB1360500A (en) | 1971-08-25 | 1971-08-25 | Telephone instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7211528A true NL7211528A (en:Method) | 1973-02-27 |
Family
ID=10412156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7211528A NL7211528A (en:Method) | 1971-08-25 | 1972-08-24 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4831009A (en:Method) |
| DE (1) | DE2241725A1 (en:Method) |
| FR (1) | FR2151365A5 (en:Method) |
| GB (1) | GB1360500A (en:Method) |
| NL (1) | NL7211528A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59207701A (ja) * | 1983-05-11 | 1984-11-24 | Hokuriku Electric Power Co Inc:The | パラボラ型アンテナの着雪防止装置 |
| US8659490B2 (en) | 2009-01-15 | 2014-02-25 | William D. Walton | Apparatus and method for clearing water from dish antenna covers |
-
1971
- 1971-08-25 GB GB3991271A patent/GB1360500A/en not_active Expired
-
1972
- 1972-08-23 FR FR7230058A patent/FR2151365A5/fr not_active Expired
- 1972-08-24 NL NL7211528A patent/NL7211528A/xx unknown
- 1972-08-25 DE DE19722241725 patent/DE2241725A1/de active Pending
- 1972-08-25 JP JP8521872A patent/JPS4831009A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2151365A5 (en:Method) | 1973-04-13 |
| JPS4831009A (en:Method) | 1973-04-24 |
| GB1360500A (en) | 1974-07-17 |
| DE2241725A1 (de) | 1973-03-08 |