FIRST USE MAR. 8, 1948, ON STOP PINS, REAMERS, COUNTERBORES AND STOP; IN COMMERCE MAR. 8, 1948; AND AS TO THE MARK "TCMCO" SINCE JULY 1941
FIRST USE MAR. 8, 1948, ON STOP PINS, REAMERS, COUNTERBORES AND STOP; IN COMMERCE MAR. 8, 1948; AND AS TO THE MARK "TCMCO" SINCE JULY 1941