Ward, Lalos, Leeds, Keegan & Lett
Method of making chain
 A method of making a chain generally consisting of forming at least two links integrally so that the two links are interlocked and are joined together and then severing the links along the joint to provide at least two separate, interlocked links. 
Dresser Industries, Inc.
Y B B
Y10S B22C B22D
additional inventional inventional
James B.
Rogers