FR701999A - Improvements to switching devices - Google Patents
Improvements to switching devicesInfo
- Publication number
- FR701999A FR701999A FR701999DA FR701999A FR 701999 A FR701999 A FR 701999A FR 701999D A FR701999D A FR 701999DA FR 701999 A FR701999 A FR 701999A
- Authority
- FR
- France
- Prior art keywords
- switching devices
- switching
- devices
- 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
- H01H29/00—Switches having at least one liquid contact
- H01H29/16—Switches having at least one liquid contact operated by dipping soil contact into stationary contact liquid
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE542792T | 1930-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR701999A true FR701999A (en) | 1931-03-26 |
Family
ID=34258077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR701999D Expired FR701999A (en) | 1930-02-09 | 1930-09-15 | Improvements to switching devices |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE542792C (en) |
FR (1) | FR701999A (en) |
GB (1) | GB353753A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19755003A1 (en) * | 1997-12-11 | 1999-06-17 | Nils Buer | Filling level measuring unit for liquid levels |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE744761C (en) * | 1940-02-17 | 1944-01-24 | Siemens Ag | Changeover switch for the currentless initiation of switching processes, in particular driving and braking processes in electric vehicles |
-
1930
- 1930-02-09 DE DE1930542792D patent/DE542792C/en not_active Expired
- 1930-09-11 GB GB2719730A patent/GB353753A/en not_active Expired
- 1930-09-15 FR FR701999D patent/FR701999A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19755003A1 (en) * | 1997-12-11 | 1999-06-17 | Nils Buer | Filling level measuring unit for liquid levels |
Also Published As
Publication number | Publication date |
---|---|
DE542792C (en) | 1932-01-28 |
GB353753A (en) | 1931-07-30 |
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