Mark Identification

HYDRA HYDRAULIC RAKE

Serial Number

73117093

Filing Date

Feb 25, 1977

Registration Date

Nov 25, 1980

Trademark by

BARRETT HAENTJENS & CO. OF PITTSBURGH

Classification Information

Sludge Removal System Consisting of Piping and Actuated Control Valves Submerged in a Sludge Bed Located at the Bottom of a Sedimentation Basin, this Suction Piping Network Being Connected to a Pump to Permit Drawing Off of the Settled Material

Machinery