NL78933C - - Google Patents
Info
- Publication number
- NL78933C NL78933C NL78933DA NL78933C NL 78933 C NL78933 C NL 78933C NL 78933D A NL78933D A NL 78933DA NL 78933 C NL78933 C NL 78933C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/62—Co-operating movable contacts operated by separate electrical actuating means
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US389322A US2305450A (en) | 1941-04-19 | 1941-04-19 | Relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL78933C true NL78933C (xx) |
Family
ID=23537773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL78933D NL78933C (xx) | 1941-04-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2305450A (xx) |
| BE (1) | BE468901A (xx) |
| FR (1) | FR943612A (xx) |
| GB (1) | GB551433A (xx) |
| NL (1) | NL78933C (xx) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2441001A (en) * | 1943-07-02 | 1948-05-04 | Kellogg Switchboard & Supply | Electromagnetic counting device |
| US2452568A (en) * | 1943-10-01 | 1948-11-02 | Bell Telephone Labor Inc | Switching device |
| US2538815A (en) * | 1945-08-25 | 1951-01-23 | Kellogg Switchboard & Supply | Electromagnetic counting device |
| US2456169A (en) * | 1946-01-12 | 1948-12-14 | Kellogg Switehboard And Supply | Electromagnetic counting device |
| US2561730A (en) * | 1946-03-20 | 1951-07-24 | Bell Telephone Labor Inc | Electrical impulse counting system |
| US2487015A (en) * | 1946-09-26 | 1949-11-01 | Kellogg Switchboard & Supply | Electromagnetic counting device |
| US2538817A (en) * | 1946-11-20 | 1951-01-23 | Kellogg Switchboard & Supply | Electromagnetic counting device |
| US2589806A (en) * | 1947-07-03 | 1952-03-18 | Bell Telephone Labor Inc | Selective signaling system |
| US2564432A (en) * | 1947-07-03 | 1951-08-14 | Bell Telephone Labor Inc | Impulse counting relay |
| US2622143A (en) * | 1947-10-03 | 1952-12-16 | Hans P Boswau | Electromagnetic counting device |
| US2610242A (en) * | 1948-03-20 | 1952-09-09 | Bell Telephone Labor Inc | Impulse counting relay and system therefor |
| US2538818A (en) * | 1948-08-07 | 1951-01-23 | Kellogg Switchboard & Supply | Electromagnetic counting device |
| US2672599A (en) * | 1951-04-02 | 1954-03-16 | Telephone Mfg Co Ltd | Electric selecting device responsive to impulses |
| DE1074886B (de) * | 1953-07-31 | 1960-02-04 | El-Re-Ma Societa anonima per Io sfruttamento di brevetti, Lugano (Schweiz) | Elektrische Rechenmaschine |
| NL130844C (xx) * | 1959-08-19 | |||
| NL130845C (xx) * | 1959-08-19 | |||
| US10465490B2 (en) * | 2016-07-18 | 2019-11-05 | Eastman Chemical Company | Well treatment fiber delivery system |
-
0
- NL NL78933D patent/NL78933C/xx active
- BE BE468901D patent/BE468901A/xx unknown
-
1941
- 1941-04-19 US US389322A patent/US2305450A/en not_active Expired - Lifetime
-
1942
- 1942-05-27 GB GB7161/42A patent/GB551433A/en not_active Expired
-
1946
- 1946-10-14 FR FR943612D patent/FR943612A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE468901A (xx) | |
| FR943612A (fr) | 1949-03-14 |
| US2305450A (en) | 1942-12-15 |
| GB551433A (en) | 1943-02-22 |