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发明名称
Safety control for mechanical garage jacks
摘要
申请公布号
US2018148(A)
申请公布日期
1935.10.22
申请号
US19330702455
申请日期
1933.12.15
申请人
BLACKHAWK MFG. CO.
发明人
PFAUSER EDWARD M.
分类号
B66F5/02
主分类号
B66F5/02
代理机构
代理人
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地址
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