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发明名称
Steam boiler
摘要
申请公布号
US1917617(A)
申请公布日期
1933.07.11
申请号
US19320625989
申请日期
1932.07.29
申请人
ULRICH HENRY A
发明人
ULRICH HENRY A.
分类号
F22B21/12
主分类号
F22B21/12
代理机构
代理人
主权项
地址
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