IC 012. US 019 021 023 031 035 044. G & S: Couplings, namely, shaft couplings for land vehicles
IC 037. US 100 103 106. G & S: Installation, maintenance and repair of machine couplings and transmission components; providing information about the repair of couplings, bearings, shaftings, motors and transmission components; reconditioning in the nature of repairing, coating, grinding, buffing and polishing machines, motors, engines, gear boxes and couplings that have been worn or partially destroyed
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