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BE513259A
Expired / Lapsed
BE
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MAGNETIC CONTROL DEVICES FOR ALTERNATIVE CURRENT ELECTRICAL CIRCUITS.
Assignee: Bell Telephone Mfg
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Filing: 1952-08-01
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Granted: —
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Expires: 1972-08-01
Abstract
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Bibliographic Details
Application Number
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Jurisdiction
BE
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2026-10-30 19:47
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