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DE709393C Expired / Lapsed DE ⏱️ 0.0 years remaining

Method and device for regulating the volume and for determining the rise and fall curves in electrical tone generation

Assignee: Individual
•
Filing: 1938-12-16
•
Granted: 1941-08-15
•
Expires: 1958-12-16
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Abstract

No abstract record available.

Inventors

  • 👤 Karl Schneider

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-27 13:05
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/053

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