Number | Name | Date | Kind |
---|---|---|---|
3678566 | Ellis et al. | Jul 1972 | |
3753286 | Lilly et al. | Aug 1973 | |
3954215 | Takagi et al. | May 1976 |
Number | Date | Country |
---|---|---|
1209398 | Feb 1986 | SUX |
Entry |
---|
cf. V. I. Vill "Friction Welding of Metals", Leningrad, Mashinostroenie, 1970, p. 61. |