FR756564A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements in manufacturing processes for abrasive products, glass paper and other similar products, product obtained by said improved process and adhesives for said product
Assignee: 3M Co
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Filing: 1933-03-22
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Granted: 1933-12-12
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Expires: 1953-03-22
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FR
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2026-10-23 05:35
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