Number | Date | Country | Kind |
---|---|---|---|
1628/86 | Apr 1986 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
1124759 | Lloyd | Jan 1915 | |
2322221 | Cereghino | Jun 1943 | |
2517574 | Jones et al. | Aug 1950 | |
2767829 | Hallden | Oct 1956 | |
3591756 | Timko | Jul 1971 | |
4352001 | Ishibashi | Sep 1982 | |
4354090 | Nilsen | Oct 1982 | |
4417117 | Opprecht | Nov 1983 |
Number | Date | Country |
---|---|---|
2016559 | Dec 1970 | DEX |
2907391 | Sep 1980 | DEX |
Entry |
---|
Machinery's Handbook, 21st Edition, p. 2381, 1979. |