73105937
Nov 5, 1976
Nov 29, 1977
Active Trademark
ULTRA-HIGH PURITY MATERIALS FOR USE IN THE SEMICONDUCTOR INDUSTRY-NAMELY, BORON TRIBROMIDE, PHOSPHOROUS OXYCHLORIDE, PHOSPHOROUS TRIBROMIDE [ , SILICON TETRABROMIDE , ARSENIC TRICHLORIDE, ARSENIC TRIBROMIDE AND ANTIMONY PENTACHLORIDE ]
Chemicals