DE736247C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Sound box membrane
Assignee: IG Farbenindustrie AG
•
Filing: 1941-03-05
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Granted: 1943-06-10
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Expires: 1961-03-05
Abstract
No abstract record available.
Inventors
- 👤 Dr John Eggert
- 👤 Dr Fritz Steube
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-29 08:20
CPC Classifications
H; H04; H04R; H04R7/00; H04R7/02; H04R7/04; H04R7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
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