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Patent DE490699C successfully refreshed from Google Patents.
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DE490699C Expired / Lapsed DE ⏱️ 0.0 years remaining

Signal device for displaying the movement of a fluid in a pipeline

Assignee: Individual
•
Filing: 1928-01-03
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Granted: 1930-01-31
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Expires: 1948-01-03
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Abstract

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Inventors

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-22 23:31
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/0006; G01P13/0066

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