71562006
Jul 23, 1948
Nov 8, 1949
MECHANICAL VISCOUS TYPE DUST ARRESTORS OR COLLECTORS OF THE AUTOMOTIVE OIL BATH TYPE USED WITH INTERNAL COMBUSTION ENGINES AND IN GAS PIPE LINES AND HAVING A STATIONARY VISCOUS IMPINGEMENT FILTER MEDIUM AND A VISCOUS OIL BATH WHEREIN THE INCOMING AIR CARRIES OIL INTO THE FILTER MEDIUM FOR CLEANING AND RECOATING PURPOSES
Natural Agricultural Products