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DE577932C Expired / Lapsed DE ⏱️ 0.0 years remaining

Process for the production of refractory building materials by fusing oxides of chromium, aluminum, magnesium and silicon

Assignee: Individual
•
Filing: 1927-10-13
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Granted: 1933-06-07
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Expires: 1947-10-13
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-06 12:21
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/42; C04B35/12; C04B35/44

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