Patent FR555139A successfully refreshed from Google Patents.
FR555139A
Expired / Lapsed
FR
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Vacuum device
Assignee: Hermann Steckhan
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Filing: 1922-06-16
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Granted: 1923-06-25
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Expires: 1942-06-16
Abstract
No abstract record available.
Inventors
- 👤 Hermann Steckhan
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 18:51
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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