Number | Name | Date | Kind |
---|---|---|---|
687114 | Brown | Oct 1901 | |
1398695 | Hull | Oct 1921 | |
2305790 | Martin | Feb 1942 | |
2546492 | Booth | Aug 1951 | |
3103374 | Portnoy | Sep 1963 | |
3419240 | Santic | Dec 1968 | |
4450655 | Rosenthal | May 1984 | |
5482396 | Guillemet | Jan 1996 |
Number | Date | Country |
---|---|---|
7947 | Jan 1890 | GBX |
617884 | Feb 1949 | GBX |
Entry |
---|
Pitkin; "A Joint For The Work Bench", Scientific American, p. 120, Feb. 1909. |