Patent DE698045C successfully refreshed from Google Patents.
DE698045C
Expired / Lapsed
DE
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Test device to determine whether gas masks are breathing
Assignee: Draegerwerk AG and Co KGaA
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Filing: 1938-12-17
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Granted: 1940-10-31
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Expires: 1958-12-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 18:25
CPC Classifications
A; A62; A62B; A62B27/00
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Total Claims: 0
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References Cited (Backward Citations)
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