Patent DE575492C successfully refreshed from Google Patents.
DE575492C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
speaker
Assignee: Lohusta Elektro Akustik G M B
•
Filing: 1927-11-06
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Granted: 1933-04-28
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Expires: 1947-11-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/28; H04R1/2807; H04R1/2815; H04R1/2819
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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