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发明名称
EXTENDIBLE BOOM
摘要
申请公布号
GB1360141(A)
申请公布日期
1974.07.17
申请号
GB19720040043
申请日期
1972.08.29
申请人
NATIONAL CRANE CORPORATION
发明人
分类号
B66C23/70;(IPC1-7):B66C23/64
主分类号
B66C23/70
代理机构
代理人
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