FR641793A
Expired / Lapsed
FR
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Ring seal
Assignee: Gustav Friedrich Gerdts
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Filing: 1927-10-04
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Granted: 1928-08-10
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Expires: 1947-10-04
Abstract
No abstract record available.
Inventors
- 👤 Gustav Friedrich Gerdts
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 02:40
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/16; F16L23/18; F16L23/20
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References Cited (Backward Citations)
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