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经营范围
发明名称
Ratchet
摘要
申请公布号
US3353454(A)
申请公布日期
1967.11.21
申请号
US19660540417
申请日期
1966.04.05
申请人
DONOVAN WILLIAM F
发明人
DONOVAN WILLIAM F.
分类号
F15B15/26
主分类号
F15B15/26
代理机构
代理人
主权项
地址
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