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FR866928A
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FR
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Improvements made to objects, in particular pipes, made of a cement-based material, in particular of a fibrous concrete such as asbestos-cement
Assignee: FRANCAISE ETERNIT SA
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Filing: 1940-08-29
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Granted: 1941-09-18
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Expires: 1960-08-29
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-07 12:02
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/56
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