Machinery Trademarks Filed in May 12, 1953
CYCLO-CORE
Filed: May 12, 1953
ROTARY DRILL BIT
Owned by: TRU-CUT, INC.
Serial Number: 71646889
THUNDER-CORE
Filed: May 12, 1953
POWER-HAMMER BIT
Owned by: TRU-CUT, INC.
Serial Number: 71646890
THUNDER-TWIST
Filed: May 12, 1953
POWER-HAMMER BIT
Owned by: TRU-CUT, INC.
Serial Number: 71646891
