72314288
Dec 12, 1968
Aug 24, 1971
JIGS AND FIXTURES MADE OF PURIFIED GRAPHITE FOR USE IN THE PREPARATION OF SEMICONDUCTOR DEVICES; PURIFIED GRAPHITE CASTING MOLDS AND BLOCK INSERTS THEREFOR; PYROLYTIC GRAPHITE COATED GRAPHITE TOOLING FOR USE IN MAKING SEMICONDUCTORS-NAMELY, FIXTURES ON WHICH SEMI-CONDUCTOR MATERIAL IS VAPOR-DEPOSITED
Yarns and ThreadsLABORATORY EQUIPMENT COMPRISING CONTAINERS MADE OF PURIFIED GRAPHITE USED FOR OR IN CONNECTION WITH MELTING, CASTING, OR REFINING MATERIALS SUCH AS METALS, CERAMICS, AND CHEMICALS-NAMELY, COMBUSTION BOATS, FUNNELS, AND CRUCIBLES; CONTAINERS FOR THE TRANSPORT OF RADIO-ACTIVE MATERIALS; AND CARBON AND GRAPHITE ELECTRODES AND POWDERS FOR USE IN SPECTROSCOPIC ANALYSIS APPARATUS AND IN OTHER MEASURING AND SCIENTIFIC APPLIANCES
Fancy GoodsREFRACTORY CONTAINERS MADE OF PURIFIED GRAPHITE FOR USE IN CONNECTION WITH MELTING, CASTING OR REFINING MATERIALS SUCH AS METALS, CERAMICS AND CHEMICALS-NAMELY, CRUCIBLES, COMBUSTION BOATS; AND PYROLYTIC GRAPHITE COATED GRAPHITE FURNACE PARTS FOR HIGH TEMPERATURE FURNACES FOR GROWING CRYSTALS; AND NUCLEAR REACTOR COMPONENTS MADE OF PURIFIED GRAPHITE-NAMELY, MODERATORS, REFLECTORS, AND THERMAL COLUMNS
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