FR988559A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements made to hydro-pneumatic devices to obtain the automatic reversal of the direction of flow of a liquid stream, in particular for unclogging liquid filters, measuring devices, etc.
Assignee: Robert-Eugene Saint-Andre
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Filing: 1944-01-10
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Granted: 1951-08-29
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Expires: 1964-01-10
Abstract
No abstract record available.
Inventors
- 👤 Robert-Eugene Saint-Andre
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-09 13:25
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/70; F04D29/708; F16; F16L; F16L2101/00; F16L2101/30
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