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DE671564C Expired / Lapsed DE ⏱️ 0.0 years remaining

Welded connection for a smooth, flangeless heating pipe, especially for locomotive boilers

Assignee: Krupp Stahl AG
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Filing: 1936-12-10
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Granted: 1939-02-09
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Expires: 1956-12-10
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-04 21:12
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/08; F16L41/082; F16L41/084; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/104

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