Chemicals Trademarks Filed in November 10, 1970
QUSO G
Filed: November 10, 1970
SILICA
Owned by: PHILADELPHIA QUARTZ COMPANY
Serial Number: 72375697
PD
Filed: November 10, 1970
SOLUBLE SILICATE
Owned by: PHILADELPHIA QUARTZ COMPANY
Serial Number: 72375698
QUSO F
Filed: November 10, 1970
SILICA
Owned by: PHILADELPHIA QUARTZ COMPANY
Serial Number: 72375699
QUSO WR
Filed: November 10, 1970
SILICA
Owned by: PHILADELPHIA QUARTZ COMPANY
Serial Number: 72375700
