Patent FR792745A successfully refreshed from Google Patents.
FR792745A
Expired / Lapsed
FR
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Improvements to vacuum pumps using condensable steam as the driving fluid
Assignee: Compagnie Generale de Radiologie SA
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Filing: 1934-10-06
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Granted: 1936-01-09
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Expires: 1954-10-06
Abstract
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Inventors
No inventors recorded.
Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 17:23
CPC Classifications
F; F04; F04F; F04F9/00
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