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发明名称
Mechanical transmission system
摘要
申请公布号
US1956714(A)
申请公布日期
1934.05.01
申请号
US19320631631
申请日期
1932.09.03
申请人
OTIS ELEVATOR COMPANY
发明人
GRAFF-BAKER WILLIAM SEBASTIAN
分类号
B66B23/02
主分类号
B66B23/02
代理机构
代理人
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地址
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