| 发明名称 |
Four track crawler crane |
| 摘要 |
A crawler that includes a first crawler assembly and a second crawler assembly attached to the first crawler assembly so that the first crawler assembly is aligned with the direction of travel of the second crawler assembly.
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| 申请公布号 |
US6588521(B1) |
申请公布日期 |
2003.07.08 |
| 申请号 |
US19990277364 |
申请日期 |
1999.03.26 |
| 申请人 |
MANITOWOC CRANE COMPANIES, INC. |
发明人 |
PORUBCANSKY KENNETH J.;PECH DAVID J.;PLEUSS ALAN E. |
| 分类号 |
B66C23/26;B66C23/36;B66C23/62;B66C23/74;E02F9/02;(IPC1-7):B66C23/36 |
主分类号 |
B66C23/26 |
| 代理机构 |
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代理人 |
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