FR1031668A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Noise-damping ceiling
Assignee: Gunnar Frenger
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Filing: 1950-11-23
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Granted: 1953-06-25
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Expires: 1970-11-23
Abstract
No abstract record available.
Inventors
- 👤 Gunnar Frenger
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 09:21
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/22; E04B9/24; E04B9/26; F; F24; F24D; F24D3/00; F24D3/12; F24D3/16; F24D3/165; Y; Y02; Y02B; Y02B30/00
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References Cited (Backward Citations)
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