Number | Date | Country | Kind |
---|---|---|---|
7937773 | Oct 1979 | GBX |
Filing Document | Filing Date | Country | Kind | 102e Date | 371c Date |
---|---|---|---|---|---|
PCT/GB80/00184 | 10/28/1980 | 6/17/1981 | 6/17/1981 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO81/01259 | 5/14/1981 |
Number | Name | Date | Kind |
---|---|---|---|
344457 | Paull et al. | Jun 1886 | |
1935854 | McCreary | Nov 1933 | |
3793871 | Kinghorn | Feb 1974 | |
4193279 | Maeder | Mar 1980 |
Number | Date | Country |
---|---|---|
890701 | Jan 1972 | CAX |
Entry |
---|
Eary & Reed, Techniques of Press Working Sheet Metal, 1974, pp. 112 and 113. |