C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
6/225
C21D 1/70 (2006.01) B23K 35/24 (2006.01) C01F 5/06 (2006.01) C23C 24/00 (2006.01)
Patent
CA 1018305
Katoh Hirotada
Nakashima Shozaburo
Tanaka Osamu
Yamamoto Takaaki
LandOfFree
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