US Pat. 1,209,545 Thomas Alexander Boyd and Harold Arthur Boyd, Glasgow, Scotland. Machine for, spinning or twisting strips of paper, into yarn. Specification of Letters Patent. Patented Dec. 19, 1916. Application filed April 27, 1915. Serial No. 24,278.
US Pat. 194,588A Gourley Raymond Carl, Method for making paper yarn, Application Dan River Mills Inc 1962-05-14.