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DE624329C Expired / Lapsed DE ⏱️ 0.0 years remaining

Process for making smokeless briquette from petroleum coke

Assignee: DR WILHELM GROTH
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Filing: 1932-07-30
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Granted: 1936-01-17
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Expires: 1952-07-30
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-04 18:40
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/02; C10L5/06; C10L5/08

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