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发明名称
(B1) ;TRACK WORK MACHINE PROVIDED WITH MECHANICAL TRACK DISPLACING APPARATUS
摘要
申请公布号
PL228531(A1)
申请公布日期
1981.08.21
申请号
PL19800228531
申请日期
1980.12.17
申请人
SIG SCHWEIZ INDUSTRIEGES
发明人
分类号
B61D15/00;E01B33/00;E01B33/02;(IPC1-7):E01B/
主分类号
B61D15/00
代理机构
代理人
主权项
地址
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