C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/85
C04B 22/00 (2006.01) C04B 7/32 (2006.01)
Patent
CA 962704
Mizunuma Tsutomu
Ono Yoshizo
Denki Kagaku Kogyo Kabushiki Kaisha
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