Patent CH288661A successfully refreshed from Google Patents.
CH288661A
Expired / Lapsed
CH
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Acoustically insulating ventilation device.
Assignee: Tecto S A R L
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Filing: 1951-03-22
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Granted: —
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Expires: 1971-03-22
Abstract
No abstract record available.
Inventors
- 👤 Tecto S A R L
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-05 19:29
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/8218; F; F24; F24F; F24F13/00; F24F13/24; E04B1/84; E04B2001/8457; E04B2001/8476; E04B2001/848; E04B2001/849; E04B2001/8495
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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