C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
73/115, 73/124,
C22B 26/22 (2006.01)
Patent
CA 671635
Bretschneider Otto
Diskowski Herbert
Jaekel Gerhart
Knapsack-Griesheim Aktiengesellschaft
Na
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