FR550685A - - Google Patents
Info
- Publication number
- FR550685A FR550685A FR550685DA FR550685A FR 550685 A FR550685 A FR 550685A FR 550685D A FR550685D A FR 550685DA FR 550685 A FR550685 A FR 550685A
- Authority
- FR
- France
- 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
- H01H7/00—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
- H01H7/02—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with fluid timing means
- H01H7/03—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with fluid timing means with dash-pots
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR550685A true FR550685A (xx) | 1923-03-15 |
Family
ID=1538329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR550685D Expired FR550685A (xx) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR550685A (xx) |
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0
- FR FR550685D patent/FR550685A/fr not_active Expired