| http://www.w3.org/ns/prov#value | - The gearbox 125, preferably connected to the lower portion 75 of the housing 10 with screws, bolts or other common fasteners preferably proximal to the forward end 15 thereof, is a 90 degree gearbox preferably having a double-ended gearbox output shaft 540 oriented transverse to the arms and defining ends 545 a and 545 b.
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