DE843883C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Acoustic protection device for the ear
Assignee: DR JOSEF ZWISLOCKI BASEL (SCHWEIZ)
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Filing: 1949-11-01
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Granted: 1952-07-14
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Expires: 1969-11-01
Abstract
No abstract record available.
Inventors
- 👤 Josef Dr Zwislocki
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 15:08
CPC Classifications
D; D06; D06C; D06C23/00; D06C23/04; A; A61; A61F; A61F11/00; A61F11/06; A61F11/08; A61F11/085
Claims Analysis
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References Cited (Backward Citations)
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