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FR946977A Expired / Lapsed FR ⏱️ 0.0 years remaining

Manufacturing process of rubber reinforced with lignin and products so obtained

Assignee: West Virginia Pulp and Paper Co
•
Filing: 1947-05-21
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Granted: 1949-06-20
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Expires: 1967-05-21
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-02 13:43
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/06; C08L21/00; C08L97/00; C08L97/005

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