BE514232A - - Google Patents
Info
- Publication number
- BE514232A BE514232A BE514232DA BE514232A BE 514232 A BE514232 A BE 514232A BE 514232D A BE514232D A BE 514232DA BE 514232 A BE514232 A BE 514232A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H63/00—Details of electrically-operated selector switches
- H01H63/02—Contacts; Wipers; Connections thereto
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2740870X | 1951-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE514232A true BE514232A (en) |
Family
ID=4571412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE514232D BE514232A (en) | 1951-09-27 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2740870A (en) |
| BE (1) | BE514232A (en) |
| CH (1) | CH299543A (en) |
| DE (1) | DE928297C (en) |
| FR (1) | FR1063417A (en) |
| NL (1) | NL172651C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2902549A (en) * | 1956-08-31 | 1959-09-01 | Executone Inf Sys Inc | Multiple unit pile-up switch |
| US3196225A (en) * | 1961-04-13 | 1965-07-20 | Gen Motors Corp | Rotary interrupter switch |
| US3316513A (en) * | 1966-01-03 | 1967-04-25 | Bell Telephone Labor Inc | Sealed contact reed switch having contoured reeds |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US589582A (en) * | 1897-09-07 | Thur w | ||
| US1216420A (en) * | 1914-12-01 | 1917-02-20 | Gen Railway Signal Co | Relay. |
| US1394087A (en) * | 1918-05-17 | 1921-10-18 | W N Matthews And Brother Inc | Cut-out switch |
| BE396738A (en) * | 1931-02-25 | |||
| US2341931A (en) * | 1941-04-24 | 1944-02-15 | Gen Electric | Circuit maker and breaker |
| US2499420A (en) * | 1946-02-19 | 1950-03-07 | Michael J Sakatos | Nonsparking switch |
| FR928855A (en) * | 1946-05-07 | 1947-12-10 | Diffusions Modernes | Telephone relay |
-
0
- BE BE514232D patent/BE514232A/xx unknown
- NL NLAANVRAGE7200241,A patent/NL172651C/en active
-
1951
- 1951-09-27 CH CH299543D patent/CH299543A/en unknown
-
1952
- 1952-09-16 US US309818A patent/US2740870A/en not_active Expired - Lifetime
- 1952-09-17 FR FR1063417D patent/FR1063417A/en not_active Expired
- 1952-09-17 DE DES30261A patent/DE928297C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE928297C (en) | 1955-05-31 |
| NL172651C (en) | |
| CH299543A (en) | 1954-06-15 |
| FR1063417A (en) | 1954-05-03 |
| US2740870A (en) | 1956-04-03 |