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Patent DE669752C successfully refreshed from Google Patents.
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DE669752C Expired / Lapsed DE ⏱️ 0.0 years remaining

Electrical measuring instrument for monitoring operating conditions

Assignee: Siemens and Halske AG
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Filing: 1934-07-04
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Granted: 1939-01-03
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Expires: 1954-07-04
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-06 19:30
CPC Classifications
G; G01; G01D; G01D11/00; G01D11/24; F; F02; F02B; F02B77/00; F02B77/08; F16; F16N; F16N29/00; G01D7/00; G01D7/02; G01D7/04; G01D7/06; G07; G07C; G07C5/00; G07C5/08

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