(under the class definition) Devices forming a part of or in the nature of an attachment to strap, chain, cable, pipe or the like, constituting an enlargement thereof and designed for use as a trip or obstacle to the free passage of said strap, chain, cable or pipe through other members.
SEE OR SEARCH CLASS
59, Chain, Staple, and Horseshoe Making,
93, for chain attachments.
175, Boring or Penetrating the Earth, particularly
422, for a clasp (e.g., a well slip assembly) which separately travels with an earth boring shaft or which cooperates with specifically shaped well structure which stops or actuates the clasp.
