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 (en) |
Family
ID=19750486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL74004D NL74004C (en) | 1950-02-04 |
Country Status (7)
Country | Link |
---|---|
US (1) | US2693506A (en) |
BE (1) | BE501016A (en) |
CH (1) | CH291948A (en) |
DE (1) | DE846116C (en) |
FR (1) | FR1039616A (en) |
GB (1) | GB677706A (en) |
NL (1) | NL74004C (en) |
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 DE DEN3452A patent/DE846116C/en not_active Expired
- 1951-02-01 GB GB2548/51A patent/GB677706A/en not_active Expired
- 1951-02-02 CH CH291948D patent/CH291948A/en unknown
- 1951-02-02 FR FR1039616D patent/FR1039616A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE501016A (en) | |
GB677706A (en) | 1952-08-20 |
FR1039616A (en) | 1953-10-08 |
US2693506A (en) | 1954-11-02 |
CH291948A (en) | 1953-07-15 |
DE846116C (en) | 1952-08-07 |