(under subclass 200) Apparatus wherein the significance is attributed to the shape or configuration of the inflexible component or the traction plate.
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198, for a link or shoe structure.
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59, Chain, Staple and Horseshoe Making,
35.1, for a chain blank and a process of making. [figure] [caption]A - Link pin; B - Link; C - Sleeve; D - Threaded plug; E - Shoe; F - Shoe guide; G - Tire or wheel