Number | Name | Date | Kind |
---|---|---|---|
3128495 | Tooth | Apr 1964 | |
3197802 | Fontana et al. | Aug 1965 |
Entry |
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Darcor Casters, Jan. 15, 1986, p. 9, square socket, item A 3rd row down in middle of row. |
Darcor Castors, Jan. 15, 1986, p. 7, plastic inserts, item A located at bottom right of page. |
Page 164, Sockets for Caster Holes, United Stationers Supply Company, 2200 East Golf Road, Des Plaines, IL 60016, Publication date 1991. |