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经营范围
发明名称
Improvements in or relating to safety valves
摘要
申请公布号
GB901061(A)
申请公布日期
1962.07.11
申请号
GB19590041018
申请日期
1959.12.02
申请人
GESELLSCHAFT DER LUDW. VON ROLL'SCHEN EISENWERKE AKTIENGESELLSCHAFT
发明人
分类号
F16K17/10
主分类号
F16K17/10
代理机构
代理人
主权项
地址
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