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发明名称
Labor saving refort pad
摘要
申请公布号
US2326573(A)
申请公布日期
1943.08.10
申请号
US19410424828
申请日期
1941.12.29
申请人
SKELLY OIL COMPANY
发明人
SHAVER WARD
分类号
B41L1/24
主分类号
B41L1/24
代理机构
代理人
主权项
地址
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