Number | Name | Date | Kind |
---|---|---|---|
1377720 | Neff | May 1921 | |
1881204 | Lundgren | Oct 1932 | |
1931490 | Fisher | Oct 1933 | |
2285965 | Halstead | Jun 1942 | |
2601643 | Sulger | Jun 1952 | |
2671274 | Greenberger | Mar 1954 | |
2920602 | Post | Jan 1960 | |
2933821 | D'Enis | Apr 1960 | |
3401462 | Korodan | Sep 1968 | |
5038489 | Muehlenbein | Aug 1991 | |
5335421 | Jones, Jr. | Aug 1994 |
Number | Date | Country |
---|---|---|
2036987 | Jul 1980 | GBX |
Entry |
---|
"Practical Ideas . . . ", American Machininst/Metalworking Manufacturing, vol. 104 No. 6, Mar. 21, 1960, p. 150. |
1992 Thomas Register, pp. 138, 748 DASCO PRO Product Brochure. |
Empire Product Brochure (no date). |