DE904944C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Ventilation grille with adjustable louvre-like flaps
Assignee: HELMUT GREWE
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Filing: 1951-11-28
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Granted: 1954-02-25
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Expires: 1971-11-28
Abstract
No abstract record available.
Inventors
- 👤 Helmut Grewe
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-30 11:34
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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