Permann Trademarks

PERMANNA
CHEMICALS, NAMELY, A SOLUTION TO DEACTIVATE PYROPHORIC IRON SULFIDE IN REFINERY EQUIPMENT
Registered  ·  July 13, 2010  ·  85083077  · 
permanna
PERMANNEAL
ANNEALED IRON ABRASIVE (SHOT OR GRIT SIZE) USED FOR BLAST CLEANING
Expired  ·  January 30, 1963  ·  72161724  ·