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发明名称
Bumper jack
摘要
申请公布号
US2146403(A)
申请公布日期
1939.02.07
申请号
US19370132565
申请日期
1937.03.23
申请人
VULCAN MANUFACTURING CO., INC.
发明人
NILSON LEONARD D.
分类号
B66F3/42
主分类号
B66F3/42
代理机构
代理人
主权项
地址
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