Patent US2229730A successfully refreshed from Google Patents.
Patent DE868330C successfully refreshed from Google Patents.
DE868330C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Multi-stage liquid ring pump for the joint pumping of gases and liquids
Assignee: Individual
•
Filing: 1951-07-10
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Granted: 1953-02-23
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Expires: 1971-07-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 15:16
CPC Classifications
F; F04; F04C; F04C23/00; F04C23/001; F04C19/00; F04C19/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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