FR538089A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
hollow elements in reinforced cement or others, replacing pebbles in the manufacture of lightweight concrete
Assignee: Etienne Chenille
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Filing: 1921-07-09
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Granted: 1922-06-03
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Expires: 1941-07-09
Abstract
No abstract record available.
Inventors
- 👤 Etienne Chenille
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-07 07:11
CPC Classifications
C; C04; C04B; C04B18/00; C04B18/02; C04B18/027; E; E04; E04C; E04C5/00; E04C5/01; E04C5/012
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References Cited (Backward Citations)
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