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发明名称
Screw-adjusted lifting jack
摘要
申请公布号
US2947515(A)
申请公布日期
1960.08.02
申请号
US19570700464
申请日期
1957.12.03
申请人
PAUL SHAFFER
发明人
SHAFFER PAUL
分类号
B66F3/08;E04G25/06
主分类号
B66F3/08
代理机构
代理人
主权项
地址
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