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FR981001A Expired / Lapsed FR ⏱️ 0.0 years remaining

Arrangements for testing electrical repeaters and particularly for determining the position of faulty submerged repeaters

Assignee: International Standard Electric Corp
•
Filing: 1949-02-16
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Granted: 1951-05-21
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Expires: 1969-02-16
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Abstract

No abstract record available.

Inventors

  • 👤 Frederick Ormesher Roe

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-27 07:38
CPC Classifications
H; H04; H04J; H04J1/00; H04J1/02; H04J1/16; H04B; H04B17/00; H04B17/40; H04B17/401; H04B17/402; H04B17/405

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