FR541837A - Relais à courant alternatif - Google Patents
Relais à courant alternatifInfo
- Publication number
- FR541837A FR541837A FR541837DA FR541837A FR 541837 A FR541837 A FR 541837A FR 541837D A FR541837D A FR 541837DA FR 541837 A FR541837 A FR 541837A
- Authority
- FR
- France
- Prior art keywords
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/30—Electromagnetic relays specially adapted for actuation by ac
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Braking Arrangements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US414108A US1578411A (en) | 1920-10-01 | 1920-10-01 | Electromagnetic relay |
Publications (1)
Publication Number | Publication Date |
---|---|
FR541837A true FR541837A (fr) | 1922-08-02 |
Family
ID=23639997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR541837D Expired FR541837A (fr) | 1920-10-01 | 1921-09-30 | Relais à courant alternatif |
Country Status (3)
Country | Link |
---|---|
US (1) | US1578411A (fr) |
FR (1) | FR541837A (fr) |
GB (1) | GB169711A (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2491998A (en) * | 1944-02-19 | 1949-12-20 | Westinghouse Electric Corp | Fluid-flow indicator |
-
1920
- 1920-10-01 US US414108A patent/US1578411A/en not_active Expired - Lifetime
-
1921
- 1921-09-28 GB GB25711/21A patent/GB169711A/en not_active Expired
- 1921-09-30 FR FR541837D patent/FR541837A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB169711A (en) | 1922-05-18 |
US1578411A (en) | 1926-03-30 |
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