Patent FR707658A successfully refreshed from Google Patents.
FR707658A
Expired / Lapsed
FR
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Device preserving the suction of dust, noxious gases, etc. in the respiratory tract
Assignee: Francois Ogrisek
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Filing: 1930-12-01
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Granted: 1931-07-10
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Expires: 1950-12-01
Abstract
No abstract record available.
Inventors
- 👤 Francois Ogrisek
- 👤 Wladislaw Derwich
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 04:27
CPC Classifications
A; A62; A62B; A62B23/00; A62B23/02; A62B23/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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