FR652341A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Enhancements to automatic retaining shutters
Assignee: Robert Arnold Blakeborough
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Filing: 1928-04-06
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Granted: 1929-03-07
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Expires: 1948-04-06
Abstract
No abstract record available.
Inventors
- 👤 Robert Arnold Blakeborough
- 👤 James Boyd Blakeborough
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 23:26
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/32
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References Cited (Backward Citations)
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