DE693390C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
A dust filter consisting of a coarse filter and a fine filter
Assignee: Draegerwerk AG and Co KGaA
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Filing: 1937-12-31
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Granted: 1940-07-08
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Expires: 1957-12-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-28 11:00
CPC Classifications
A; A62; A62B; A62B23/00
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Total Claims: 0
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References Cited (Backward Citations)
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