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发明名称
Antifreeze valve assembly
摘要
申请公布号
US2650611(A)
申请公布日期
1953.09.01
申请号
US19500190609
申请日期
1950.10.17
申请人
WORTHINGTON CORPORATION
发明人
HENDERSON ROBERT M.
分类号
F16L53/00
主分类号
F16L53/00
代理机构
代理人
主权项
地址
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