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Process for the production of heater elements with a double elliptical cross section

Assignee: JULIUS EGGERS DR ING
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Filing: 1919-09-09
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Granted: 1921-06-01
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Expires: 1939-09-09
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Abstract

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Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-23 17:27
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/04

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