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经营范围
发明名称
Cover closing for steam barrels, heating boilers, and the like
摘要
申请公布号
US1889606(A)
申请公布日期
1932.11.29
申请号
US19310532605
申请日期
1931.04.24
申请人
THE FIRM HARTSTEINWERK NIEDERSACHSEN, GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
发明人
LANGE HERMANN
分类号
F16J15/46
主分类号
F16J15/46
代理机构
代理人
主权项
地址
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