UMAC SELF ACTUATING SHUT OFF
Filed: January 31, 1991
safety cut-off valves for gas supply systems
Owned by: UMAC INCORPORATED
Serial Number: 74134989
UMAC BLEED-BY FLOW
Filed: January 31, 1991
safety cut-off valves operated automatically by changes in gas flow, used in domestic, industrial and intercontinental…
Owned by: UMAC INCORPORATED
Serial Number: 74134990
QUAKEBREAKER
Filed: May 27, 1994
automatic safety cut-off valves for use in gas supply pipelines
Owned by: UMAC INCORPORATED
Serial Number: 74530199
DONKIN FLOW LIMITOR
Filed: February 1, 1995
safety cut-off valves for gas supply systems
Owned by: UMAC INCORPORATED
Serial Number: 74628355
FLOW LIMITOR
Filed: February 1, 1995
safety cut-off valves for gas supply systems
Owned by: UMAC INCORPORATED
Serial Number: 74628357
AUTOCOCK
AUTOMATIC SAFETY CUT-OFF VALVES FOR USE IN GAS SUPPLY SERVICE LINES
Owned by: UMAC INCORPORATED
Serial Number: 75717974
