FR859489A
Expired / Lapsed
FR
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Improvements to gate valves and their seals
Assignee: Joseph Heinen
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Filing: 1939-08-25
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Granted: 1940-12-19
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Expires: 1959-08-25
Abstract
No abstract record available.
Inventors
- 👤 Joseph Heinen
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 12:09
CPC Classifications
H; H04; H04L; H04L13/00; H04L13/18; H04L13/188; F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/205; F16K5/207
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