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DE439464C Expired / Lapsed DE ⏱️ 0.0 years remaining

Method and device for processing oil slate u. like

Assignee: Individual
•
Filing: 1925-08-25
•
Granted: 1927-01-11
•
Expires: 1945-08-25
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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 2026-11-01 10:06
CPC Classifications
C; C10; C10B; C10B53/00; C10B53/06; C04; C04B; C04B38/00; C04B38/06; C04B38/063; C04B38/0635; C04B38/064; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91

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