BE431693A - - Google Patents
Info
- Publication number
- BE431693A BE431693A BE431693DA BE431693A BE 431693 A BE431693 A BE 431693A BE 431693D A BE431693D A BE 431693DA BE 431693 A BE431693 A BE 431693A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Electromagnets (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US180121A US2207506A (en) | 1937-12-16 | 1937-12-16 | Impulse sender |
Publications (1)
Publication Number | Publication Date |
---|---|
BE431693A true BE431693A (enrdf_load_stackoverflow) |
Family
ID=22659268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE431693D BE431693A (enrdf_load_stackoverflow) | 1937-12-16 |
Country Status (3)
Country | Link |
---|---|
US (1) | US2207506A (enrdf_load_stackoverflow) |
BE (1) | BE431693A (enrdf_load_stackoverflow) |
DE (1) | DE706026C (enrdf_load_stackoverflow) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519025A (en) * | 1946-03-29 | 1950-08-15 | George W Crise | Hermetically sealed thermostatic switch |
US2560814A (en) * | 1947-08-02 | 1951-07-17 | Sun Electric Corp | Magnetic rotor operated switch |
US2753474A (en) * | 1951-03-31 | 1956-07-03 | Winterburn | Rotatory magnet actuator |
US2938091A (en) * | 1957-10-02 | 1960-05-24 | Gen Electric | Electromechanical overspeed limit switch |
CH340544A (fr) * | 1957-12-20 | 1959-08-31 | Thermindex S A | Interrupteur électrique commandé par les fluctuations d'une grandeur variable |
US3013137A (en) * | 1958-07-14 | 1961-12-12 | Cons Electrodynamics Corp | Magnetic switch |
DE1112130B (de) * | 1960-05-27 | 1961-08-03 | Siemens Ag | Stromstosssender fuer Fernmelde-, insbesondere Fernsprechanlagen, mit einem durch einen rotierenden Dauermagneten betaetigten Kontakt |
DE1129545B (de) * | 1960-09-15 | 1962-05-17 | Siemens Ag | Nummernschalter fuer Fernmelde-, insbesondere Fernsprechanlagen mit Ein-richtungen zur Abgabe zusaetzlicher Schaltkriterien |
DE1145233B (de) * | 1960-10-04 | 1963-03-14 | Arnstadt Fernmeldewerk | Stromstosssender, insbesondere Nummern-schalter fuer Fernsprechapparate |
DE1138111B (de) * | 1961-04-21 | 1962-10-18 | Siemens Ag | Fernsprechstation mit Nummernschalter |
US3277284A (en) * | 1962-07-02 | 1966-10-04 | Robert W Cripe | System for counting only properly timed events |
US3234360A (en) * | 1962-07-11 | 1966-02-08 | Jr Robert W Schooley | Stripe counter |
US3231190A (en) * | 1963-02-15 | 1966-01-25 | Itt | Preset or predetermined type counter |
US3291389A (en) * | 1963-05-09 | 1966-12-13 | Rockwell Mfg Co | Metering system and components thereof |
US3154672A (en) * | 1963-07-03 | 1964-10-27 | Thomas E Larkin | Remote gas meter |
US3268167A (en) * | 1964-03-06 | 1966-08-23 | Smith Corp A O | Electrical pulse generator and transmitting means |
US3412238A (en) * | 1965-02-09 | 1968-11-19 | Henry Newgard & Company | System for measuring and accumulating data represented on blueprints or the like |
US3328732A (en) * | 1966-02-28 | 1967-06-27 | Gen Electric | Switching device for meters of an automatic meter reading system |
-
0
- BE BE431693D patent/BE431693A/xx unknown
-
1937
- 1937-12-16 US US180121A patent/US2207506A/en not_active Expired - Lifetime
-
1938
- 1938-11-12 DE DEA88446D patent/DE706026C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2207506A (en) | 1940-07-09 |
DE706026C (de) | 1941-05-16 |