D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 21/18 (2006.01) D21H 17/64 (2006.01) D21H 17/68 (2006.01) D21H 17/28 (2006.01) D21H 23/28 (2006.01)
Patent
CA 2216480
Didwania Hanuman Prasad
Hagens R. Graham
Le Fevre Gerard
National Silicates Ltd.
Ridout & Maybee Llp
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