FR1229145A
Expired / Lapsed
FR
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Sealing device for ventilation shafts or sleeves or similar type
Assignee: Norman William Richardson
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Filing: 1959-06-30
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Granted: 1960-09-05
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Expires: 1979-06-30
Abstract
No abstract record available.
Inventors
- 👤 Norman William Richardson
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 03:09
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/1426; B; B63; B63J; B63J2/00; B63J2/02; B63J2/10; F24F13/1486; F24F2013/1473
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References Cited (Backward Citations)
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