| 发明名称 |
Method and apparatus for breaking concrete or the like |
| 摘要 |
A substrate breaking apparatus and method including a frame and a plurality of independently controlled hammers movable between a lowered position and a raised position.
|
| 申请公布号 |
US5695254(A) |
申请公布日期 |
1997.12.09 |
| 申请号 |
US19960731974 |
申请日期 |
1996.10.23 |
| 申请人 |
BADGER STATE HIGHWAY EQUIPMENT, INC. |
发明人 |
SHINNERS, GEORGE F.;TALBERT, JOHN L. |
| 分类号 |
E01C23/12;(IPC1-7):B25D9/00 |
主分类号 |
E01C23/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
