DE457282C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Telephonograph
Assignee: Individual
•
Filing: 1925-12-01
•
Granted: 1928-03-13
•
Expires: 1945-12-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 14:46
CPC Classifications
G; G11; G11B; G11B5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
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