Number | Name | Date | Kind |
---|---|---|---|
1102652 | Gibb et al. | Jul 1914 | |
1292429 | Bull | Jan 1919 | |
1566631 | Sturtevant | Dec 1925 | |
2951345 | Lang | Sep 1960 | |
3109500 | Glawon | Nov 1963 | |
3283832 | Spannhake et al. | Nov 1966 | |
3474870 | Cook | Oct 1967 | |
3511325 | Schmidt | May 1970 | |
3583499 | Cordes | Jun 1971 | |
3815373 | Giroux | Jun 1974 | |
3920083 | Makita | Nov 1975 | |
4131164 | Hague et al. | Dec 1978 | |
4159039 | Kasuga et al. | Jun 1979 |
Entry |
---|
"Model 520 Diesel Pile Hammer"-1 p. advertisement of International Construction Equipment Inc. |