C - Chemistry – Metallurgy – 23 – G
Patent
C - Chemistry, Metallurgy
23
G
149/12, 149/22
C23G 1/26 (2006.01) C23F 1/16 (2006.01)
Patent
CA 977252
Heyman Karl
Johnsen Bernadou W. (ii)
Messerschmidt Harold J. (jr.)
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