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AT158215B
Expired / Lapsed
AT
⏱️ 0.0 years remaining
Spark gap for surge arresters.
Assignee: Elek Scher App Sprecher Schuh
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Filing: 1937-02-13
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Granted: 1940-03-26
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Expires: 1957-02-13
Abstract
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AT
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2026-11-07 19:50
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