FR776115A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Air filter for apartments or collective shelters against war gases
Assignee: Ernest Georges Leau
•
Filing: 1934-07-18
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Granted: 1935-01-17
•
Expires: 1954-07-18
Abstract
No abstract record available.
Inventors
- 👤 Ernest Georges Leau
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 21:05
CPC Classifications
F; F24; F24F; F24F8/00; F24F8/10; F24F8/192; Y; Y02; Y02A; Y02A50/00; Y02A50/20
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