Patent CH347713A successfully refreshed from Google Patents.
CH347713A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Ventilation device with a pressure relief valve
Assignee: Draeger Otto Heinrich Dr
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Filing: 1956-02-21
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Granted: —
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Expires: 1976-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-09 01:46
CPC Classifications
A; A62; A62B; A62B13/00; F; F16; F16K; F16K17/00; F16K17/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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