C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
117/89
C04B 41/49 (2006.01) B08B 3/00 (2006.01) C04B 41/00 (2006.01)
Patent
CA 973026
Plankl Leo H.
Seiler Claus D.
Vahlensieck Hans-Joachim
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