FR 14.1

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Patent category FR 14.1 or XIV.1 was for Produits chimiques, meaning chemicals.[1]

References

This wiki has 3 patents in category "FR 14.1".

Patents in category FR 14.1

Enclosing categories French patent classifications, Classifications of French patents, 1904-1958
Subcategories
Keywords CPC C01B3/06, Hydrogen
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