U.S. federal trademark · Serial No. 73608591 · Reg. No. 327791
HAND TOOLS FOR USE IN THE INSTALLATION OF SUCH DRAIN STRUCTURES, THE HAND TOOLS EACH BEING IN THE FORM OF A ROD HAVING A HANDLE AT ONE END OF THE ROD AND A RESILIENTLY DEFORMABLE ANNULUS BETWEEN TWO COMPRESSION PLATES AT THE OTHER END OF THE ROD WHEREBY TURNING OF THE ROD CAUSES, THROUGH A LEAD SCREW ARRANGEMENT, COMPRESSION OR RELEASE OF THE ANNULUS BETWEEN THE COMPRESSION PLATES
DRAIN STRUCTURES FOR ASSEMBLY TO EXISTING DRAINS IN THE RE-ROOFING OF BUILDINGS, THE DRAIN STRUCTURES EACH BEING IN THE FORM OF AN OPEN-ENDED SLEEVE OF MALLEABLE METAL HAVING AN OUTWARDLY PROJECTING FLANGE AT ONE END THEREOF
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