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FR1004606A
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FR
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Improvements to soundproofing materials
Assignee: Jean Langlois
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Filing: 1949-09-10
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Granted: 1952-04-01
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Expires: 1969-09-10
Abstract
No abstract record available.
Inventors
- 👤 Jean Langlois
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 09:58
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04B2001/8423; E04B2001/8433; E04B2001/8442
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References Cited (Backward Citations)
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