Patent FR497137A successfully refreshed from Google Patents.
FR497137A
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Concrete hollow stone for constructions
Assignee: PAUL EUGENE FRERET
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Filing: 1919-03-17
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Granted: 1919-11-26
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Expires: 1939-03-17
Abstract
No abstract record available.
Inventors
- 👤 Paul-Eugene Freret
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 12:33
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/14
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Total Claims: 0
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References Cited (Backward Citations)
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