Patent DE931140C successfully refreshed from Google Patents.
DE931140C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Automatic check valve
Assignee: W KRUEGER FA
•
Filing: 1950-03-01
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Granted: 1955-08-01
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Expires: 1970-03-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 05:52
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US373400A
Cited
US455913A
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US2002783A
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US2289946A
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US2301276A
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US2339101A
Cited
US2493650A
Cited
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