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经营范围
发明名称
Lifting mechanism
摘要
申请公布号
US2237620(A)
申请公布日期
1941.04.08
申请号
US19390274818
申请日期
1939.05.20
申请人
DOUGHTY CECIL L;DOUGHTY WILLIAM A;DOUGHTY LONNIE W
发明人
DOUGHTY CECIL L.;DOUGHTY WILLIAM A.;DOUGHTY LONNIE W.
分类号
B66F3/00;B66F7/24;B66F11/00
主分类号
B66F3/00
代理机构
代理人
主权项
地址
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