FR484272A - Electrical protection devices - Google Patents
Electrical protection devicesInfo
- Publication number
- FR484272A FR484272A FR484272DA FR484272A FR 484272 A FR484272 A FR 484272A FR 484272D A FR484272D A FR 484272DA FR 484272 A FR484272 A FR 484272A
- Authority
- FR
- France
- Prior art keywords
- protection devices
- electrical protection
- electrical
- devices
- protection
- 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
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/08—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by reversal of dc
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US484272XA | 1916-02-10 | 1916-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR484272A true FR484272A (en) | 1917-09-18 |
Family
ID=1521085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR484272D Expired FR484272A (en) | 1916-02-10 | 1917-01-18 | Electrical protection devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR484272A (en) |
-
1917
- 1917-01-18 FR FR484272D patent/FR484272A/en not_active Expired
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