FR1007184A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements made to means for placing concrete using compressed air, in particular those for concreting mine shafts
Assignee: TECH POUR L IND MINIERE SOC
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Filing: 1948-03-03
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Granted: 1952-05-02
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Expires: 1968-03-03
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 19:51
CPC Classifications
E; E21; E21D; E21D5/00; E21D5/12
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