Environmental control apparatus Trademarks Filed in April 6, 1966
DURO-TEST
Filed: April 6, 1966
ELECTRIC LAMPS
Owned by: DURO TEST CORPORATION
Serial Number: 72242806
FTLV
Filed: April 6, 1966
STEAM TRAP
Owned by: TLV CO., LTD.
Serial Number: 72242825