BOSTEC ENGINEERING, INC. Trademarks
H-SEAL
Filed: May 9, 1991
metal seals
Owned by: BOSTEC ENGINEERING, INC.
Serial Number: 74164980
HOTBLOK
Filed: October 11, 1994
component for mass flow meter, namely mass flow control heater
Owned by: BOSTEC ENGINEERING, INC.
Serial Number: 74583918
