FR857547A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Watertight reinforced concrete tanks and means of making these tanks
Assignee: PAROI HYDRAULIQUE
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Filing: 1939-03-31
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Granted: 1940-09-17
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Expires: 1959-03-31
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 22:47
CPC Classifications
E; E04; E04H; E04H7/00; E04H7/02; E04H7/18
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