Barrett Haentjens & Co. of Pittsburgh Trademarks
HYDRA-DREDGE
Filed: February 25, 1977
Sludge Removal Dredges
Owned by: Barrett Haentjens & Co. of Pittsburgh
Serial Number: 73117075
HYDRA HYDRAULIC RAKE
Filed: February 25, 1977
Sludge Removal System Consisting of Piping and Actuated Control Valves Submerged in a Sludge Bed Located at the Bottom of…
Owned by: Barrett Haentjens & Co. of Pittsburgh
Serial Number: 73117093
TURBOJETT
Filed: April 23, 1984
MACHINES FOR COMMERCIAL AND INDUSTRIAL USE FOR MIXING SOLIDS, LIQUIDS, OR GASES OR COMBINATIONS THEREOF-NAMELY, TURBULENT…
Owned by: Barrett Haentjens & Co. of Pittsburgh
Serial Number: 73476751
