NL138284B - - Google Patents
Info
- Publication number
- NL138284B NL138284B NL138284DA NL138284B NL 138284 B NL138284 B NL 138284B NL 138284D A NL138284D A NL 138284DA NL 138284 B NL138284 B NL 138284B
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Locating Faults (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL269665X | 1948-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL138284B true NL138284B (ja) |
Family
ID=19781867
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL138284D NL138284B (ja) | 1948-01-08 | ||
| NL78373D NL78373C (ja) | 1948-01-08 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL78373D NL78373C (ja) | 1948-01-08 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2662119A (ja) |
| BE (1) | BE486659A (ja) |
| CH (1) | CH269665A (ja) |
| DE (1) | DE807696C (ja) |
| FR (1) | FR978726A (ja) |
| GB (1) | GB660376A (ja) |
| NL (2) | NL78373C (ja) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE552560A (ja) * | 1956-01-10 | |||
| BE563208A (ja) * | 1957-02-13 | |||
| GB873523A (en) * | 1958-07-04 | 1961-07-26 | Ass Elect Ind | Improvements relating to potential testing circuits |
| US3156774A (en) * | 1959-09-14 | 1964-11-10 | Boudouris Angelo | Communication system for drive-in restaurants and other applications |
| US3228003A (en) * | 1962-03-20 | 1966-01-04 | Ibm | Matrix search device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL57724C (ja) * | 1939-07-24 | |||
| FR882420A (ja) * | 1941-06-10 | 1943-06-18 | ||
| NL55386C (ja) * | 1941-06-21 | |||
| US2351016A (en) * | 1942-09-14 | 1944-06-13 | Int Standard Electric Corp | Electrical control system |
| US2354668A (en) * | 1943-05-06 | 1944-08-01 | Int Standard Electric Corp | Electric selection controlling circuit |
| US2428024A (en) * | 1945-07-07 | 1947-09-30 | Int Standard Electric Corp | Matched potential electrical control system |
| US2454781A (en) * | 1945-09-17 | 1948-11-30 | Int Standard Electric Corp | Matched potential control system |
-
0
- NL NL138284D patent/NL138284B/xx unknown
- BE BE486659D patent/BE486659A/xx unknown
- NL NL78373D patent/NL78373C/xx active
-
1948
- 1948-12-22 US US66679A patent/US2662119A/en not_active Expired - Lifetime
-
1949
- 1949-01-05 GB GB298/49A patent/GB660376A/en not_active Expired
- 1949-01-06 FR FR978726D patent/FR978726A/fr not_active Expired
- 1949-01-06 CH CH269665D patent/CH269665A/de unknown
- 1949-01-07 DE DEP31056A patent/DE807696C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR978726A (fr) | 1951-04-17 |
| US2662119A (en) | 1953-12-08 |
| CH269665A (de) | 1950-07-15 |
| DE807696C (de) | 1951-07-02 |
| GB660376A (en) | 1951-11-07 |
| NL78373C (ja) | |
| BE486659A (ja) |