Praxair Technology Inc. Trademarks
HYDROSTAR
Filed: May 17, 1994
hydrogen enhanced Argon based shielding gas blend for metal processing by welding and metal cutting
Owned by: Praxair Technology Inc.
Serial Number: 74525920
HELISTAR
Filed: June 23, 1995
helium enhanced argon based shielding gas blend for metal processing by welding and metal cutting
Owned by: Praxair Technology Inc.
Serial Number: 74696206
