ELCOR, INC. Trademarks
ISOREX
Filed: November 5, 1962
UNREGULATED, UNFILTERED POWER SUPPLIES FOR ELECTRON TUBES, TRANSISTORS, RESISTANCE BRIDGES AND THE LIKE
Owned by: ELCOR, INC.
Serial Number: 72156588
KDF
Filed: December 9, 1988
ENVIRONMENTAL CONTROL APPARATUS, NAMELY, WATER FILTERS AND WATER CONDITIONING SYSTEMS
Owned by: ELCOR, INC.
Serial Number: 73768351
KDF FILTER
Filed: January 30, 1989
ENVIRONMENTAL CONTROL APPARATUS, NAMELY, WATER FILTERS AND WATER CONDITIONING SYSTEMS
Owned by: ELCOR, INC.
Serial Number: 73777303
