Singltron Trademarks

SINGLTRON
manually operated valves of metal, other than parts of machines, and parts therefor
Cancelled  ·  March 23, 1995  ·  74652593  · 
SINGLTRON
METAL, MANUAL VALVES AND COMPONENTS THEREFOR
Cancelled  ·  May 16, 1988  ·  73728755  ·