FR1119461A
Expired / Lapsed
FR
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Synthetic jewelry and their manufacturing processes
Assignee: Evonik Operations GmbH
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Filing: 1955-02-19
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Granted: 1956-06-20
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Expires: 1975-02-19
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 09:32
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/26
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