BELL RESEARCH, INC. Trademarks
FIRE-CHEK
Filed: August 15, 1958
INDICATING KEYS AND GAUGES USED IN AN APPARATUS FOR THE HEAT TREATMENT OF CERAMICS
Owned by: BELL RESEARCH, INC.
Serial Number: 72057239
BELL
Filed: March 24, 1966
HEAT MEASURING DEVICES - NAMELY, PYROMETRIC CONES, CONE PLAQUES, KEYS, AND GAUGES TO MEASURE SHRINKAGE OF KEYS
Owned by: BELL RESEARCH, INC.
Serial Number: 72241738
PYRO MINI BAR
Filed: January 2, 1970
CERAMIC TEST BLOCKS FOR FURNACES
Owned by: BELL RESEARCH, INC.
Serial Number: 72347584
