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经营范围
发明名称
Press safety valve
摘要
申请公布号
US3051187(A)
申请公布日期
1962.08.28
申请号
US19590849554
申请日期
1959.10.29
申请人
LUDWIG WALTER D
发明人
LUDWIG WALTER D.
分类号
B30B15/14;B30B15/28;F16K17/10
主分类号
B30B15/14
代理机构
代理人
主权项
地址
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