72454147
Apr 11, 1973
Mar 25, 1975
TEMPELMANN HANS P.
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DIAMOND COMPOUNDS FOR POLISHING METALLURGICAL AND MINERALOGICAL SPECIMENS; CHEMICAL PRODUCTS FOR GRINDING AND POLISHING METALLOGRAPHIC AND MINERALOGICAL SPECIMENS
CHEMICAL PRODUCTS FOR EMBEDDING METALLOGRAPHIC AND MINERALOGICAL SPECIMENS
GRINDING AND POLISHING MACHINES
POLISHING CLOTHS