71616759
Jul 21, 1951
May 18, 1954
CARBORUNDUM COMPANY THE
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REFRACTORY PARTS-NAMELY, VENTURI NOZZLES, COMBUSTION CHAMBER LINERS, VENTURI NOZZLE LINERS, AND CONE-ASSEMBLIES FOR JET PROPULSION UNITS SUCH AS ROCKETS, JET ENGINE AFTER-BURNERS, AND THE LIKE