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经营范围
发明名称
Silent ball cock
摘要
申请公布号
US2684830(A)
申请公布日期
1954.07.27
申请号
US19490078929
申请日期
1949.03.01
申请人
STEPHANY ALBERT R
发明人
STEPHANY ALBERT R.
分类号
F16K47/02
主分类号
F16K47/02
代理机构
代理人
主权项
地址
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