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发明名称
Valve
摘要
申请公布号
US1862545(A)
申请公布日期
1932.06.14
申请号
US19310538987
申请日期
1931.05.21
申请人
OLSON INGEBORG R
发明人
OLSON INGEBORG R.
分类号
F16N21/06
主分类号
F16N21/06
代理机构
代理人
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