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CH463576A Expired / Lapsed CH ⏱️ 0.0 years remaining

Electroacoustic transducer with adjustable electroacoustic properties

Assignee: Zellweger Uster Ag
•
Filing: 1967-11-23
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Granted: —
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Expires: 1987-11-23
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Abstract

No abstract record available.

Inventors

  • 👤 Schenk Alfred

Bibliographic Details

Application Number —
Jurisdiction CH
Data Source google_patents
Last Synchronized 2026-11-06 14:10
CPC Classifications
H; H04; H04R; H04R7/00; H04R7/16; H04R7/24

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