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Ringprop Trademarks
RINGPROP
Propellers; propulsion mechanisms other than for land vehicles; inboard and outboard engines for boats
Cancelled
·
March 18, 2004
·
78386694
·
RINGPROP
Ringed marine propeller for inboard/outboard marine engines
Abandoned
·
April 30, 2002
·
76401711
·
RINGPROP
marine propellers
Abandoned
·
October 22, 1996
·
75185612
·
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