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DE477740C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Piezo-electric sound transmitter
Assignee: Individual
•
Filing: 1927-01-23
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Granted: 1929-06-20
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Expires: 1947-01-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-07 00:45
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0607; B06B1/0611; B06B1/0614
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
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