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发明名称
Operating mechanism
摘要
申请公布号
US1788387(A)
申请公布日期
1931.01.13
申请号
US19270162303
申请日期
1927.01.20
申请人
ELLIOTT WILLIAM S
发明人
ELLIOTT WILLIAM S.
分类号
F16K31/122
主分类号
F16K31/122
代理机构
代理人
主权项
地址
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