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发明名称
Elevator-guide-rail-lubricating device
摘要
申请公布号
US1743894(A)
申请公布日期
1930.01.14
申请号
US19270180007
申请日期
1927.03.31
申请人
ALBERT JOHNSON
发明人
JOHNSON ALBERT
分类号
B66B7/12
主分类号
B66B7/12
代理机构
代理人
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