DE669840C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Mouthpiece for breathing apparatus, especially high altitude breathing apparatus
Assignee: BERNH DRAEGER
•
Filing: 1933-09-01
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Granted: 1939-01-05
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Expires: 1953-09-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 09:59
CPC Classifications
A; A62; A62B; A62B9/00; A62B9/06
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