U.S. federal trademark · Serial No. 98292670
Direct tension indicating metal washers; self-indicating direct tension indicating metal washers; direct tension indicating metal washers for use with fasteners and bolts; self-indicating direct tension indicating metal washers for use with fasteners and bolts; metal hardware, namely, washers, direct tension indicating washers, and self-indicating direct tension indicating metal washers; all of the foregoing containing elastomer and silicon indicating material
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