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FR919021A Expired / Lapsed FR ⏱️ 0.0 years remaining

Device for automatically changing the distance between two contacts that touch each other periodically

Assignee: Gustav Spiess
•
Filing: 1945-12-15
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Granted: 1947-02-25
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Expires: 1965-12-15
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Abstract

No abstract record available.

Inventors

  • 👤 Gustav Spiess

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-23 14:26
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/20; H02M1/28

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