DE547842C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Automatic repeating device for speaking machines
Assignee: WILHELM NULLMEYER
•
Filing: 1930-02-22
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Granted: 1932-03-29
•
Expires: 1950-02-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-09 13:24
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/08; G11B3/095; G11B3/0952
Claims Analysis
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References Cited (Backward Citations)
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