发明名称 |
Clamp |
摘要 |
A clamp comprises two opposed generally 'C' shaped components each of which co-operates with a wedge formation on the other of the components in a manner which upon the drawing together of the two components the wedge formation effectively reduces the space between the limbs of the generally 'C' shaped formation of the other component.
|
申请公布号 |
US4305561(A) |
申请公布日期 |
1981.12.15 |
申请号 |
US19780948862 |
申请日期 |
1978.10.05 |
申请人 |
COAL INDUSTRY (PATENTS) LIMITED |
发明人 |
HUNTER, RODNEY J. A.;MAPPIN, HENRY |
分类号 |
E01B25/24;E21D11/14;E21F17/02;(IPC1-7):A47B96/06 |
主分类号 |
E01B25/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|