U.S. federal trademark · Serial No. 76291373 · Reg. No. 2656041
granite product which are manufactured to a uniformly flat surface for use with measuring devices, electronic instrumentation, and other scientific devices and applications requiring a uniformly flat surface, namely, surface plates, angle plates, parallels, vee blocks, straight edges, master squares, triangular master squares, comparator stands, riser blocks, machine bases, beams, rails, columns, and box parallels
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