NL74004C - - Google Patents
Info
- Publication number
- NL74004C NL74004C NL74004DA NL74004C NL 74004 C NL74004 C NL 74004C NL 74004D A NL74004D A NL 74004DA NL 74004 C NL74004 C NL 74004C
- 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)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Relay Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL151462 | 1950-02-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL74004C true NL74004C (fr) |
Family
ID=19750486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL74004D NL74004C (fr) | 1950-02-04 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2693506A (fr) |
| BE (1) | BE501016A (fr) |
| CH (1) | CH291948A (fr) |
| DE (1) | DE846116C (fr) |
| FR (1) | FR1039616A (fr) |
| GB (1) | GB677706A (fr) |
| NL (1) | NL74004C (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2767247A (en) * | 1953-04-23 | 1956-10-16 | Automatic Elect Lab | Arrangements for single-motion numerical switches in telephone systems |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1663231A (en) * | 1924-11-10 | 1928-03-20 | Aldendorff Charlotte | Automatic telephone system |
| US1877883A (en) * | 1931-10-19 | 1932-09-20 | Associated Electric Lab Inc | Automatic telephone system |
-
0
- BE BE501016D patent/BE501016A/xx unknown
- NL NL74004D patent/NL74004C/xx active
-
1951
- 1951-01-17 US US206346A patent/US2693506A/en not_active Expired - Lifetime
- 1951-02-01 GB GB2548/51A patent/GB677706A/en not_active Expired
- 1951-02-01 DE DEN3452A patent/DE846116C/de not_active Expired
- 1951-02-02 FR FR1039616D patent/FR1039616A/fr not_active Expired
- 1951-02-02 CH CH291948D patent/CH291948A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB677706A (en) | 1952-08-20 |
| FR1039616A (fr) | 1953-10-08 |
| DE846116C (de) | 1952-08-07 |
| BE501016A (fr) | |
| US2693506A (en) | 1954-11-02 |
| CH291948A (de) | 1953-07-15 |