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发明名称
Improvements relating to jack heads
摘要
申请公布号
GB317093(A)
申请公布日期
1930.09.11
申请号
GB19290024502
申请日期
1929.08.10
申请人
ANDRE LEPELLETIER
发明人
分类号
B66F13/00
主分类号
B66F13/00
代理机构
代理人
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