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FR1021606A Expired / Lapsed FR ⏱️ 0.0 years remaining

Tubes for building up heat exchange surfaces

Assignee: Cegelec SA
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Filing: 1950-07-07
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Granted: 1953-02-20
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Expires: 1970-07-07
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Abstract

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Inventors

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-30 19:18
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/14; F28F1/20; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/101; F22B37/102

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