DE891497C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Closed oxygen breathing apparatus with freshening of the exhaled air
Assignee: Draegerwerk AG and Co KGaA
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Filing: 1942-08-08
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Granted: 1953-09-28
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Expires: 1962-08-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 21:26
CPC Classifications
A; A62; A62B; A62B7/00; A62B7/10
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