CAMBRIDGE ENGINEERING, INC. Trademarks
CAL-Q-HEAT
Filed: June 28, 1989
COMPUTERIZED ANALYSIS OF ENERGY USE BY INDUSTRY AND BUSINESS
Owned by: CAMBRIDGE ENGINEERING, INC.
Serial Number: 73809687
CAMBRIDGE ENGINEERING INC
Filed: July 3, 1989
INDUSTRIAL AIR HEATERS AND VENTILATING UNITS
Owned by: CAMBRIDGE ENGINEERING, INC.
Serial Number: 73810427
CENERGY SERVICES OF SUBSIDIARY OF CAMBRIDGE ENGINEERING
Installation of heating systems for others
Owned by: CAMBRIDGE ENGINEERING, INC.
Serial Number: 76432423
