73619006
Sep 9, 1986
Dec 5, 1989
MACHINERY AND MACHINE PARTS MADE OF CERAMIC MATERIALS, NAMELY PISTONS AND PLUNGERS FOR USE IN PUMPS AND VALVE COMPONENTS
MachineryAPPARATUS AND INSTRUMENTS FOR SCIENTIFIC RESEARCH IN LABORATORIES, NAMELY, CRUCIBLES, CRUCIBLE LIDS, AND FURNACE TRAYS
Electrical and Scientific Apparatus