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发明名称
Pulley structure for belt-type liquid elevators
摘要
申请公布号
US2391642(A)
申请公布日期
1945.12.25
申请号
US19450584018
申请日期
1945.03.21
申请人
REED JESSE C
发明人
REED JESSE C.
分类号
F04B19/16
主分类号
F04B19/16
代理机构
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