C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
63/18, 88/97.7
C03B 37/15 (2006.01) A44C 17/00 (2006.01) B44C 5/06 (2006.01) B44F 9/04 (2006.01)
Patent
CA 990090
Ludwig Jerome H.
Phillips Michael R.
LandOfFree
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