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发明名称
Method of making boilers
摘要
申请公布号
US1934021(A)
申请公布日期
1933.11.07
申请号
US19300479125
申请日期
1930.09.01
申请人
PIERCE, BUTLER & PIERCE MANUFACTURING CORPORATION
发明人
WAFTER GEORGE C.
分类号
F22B9/12
主分类号
F22B9/12
代理机构
代理人
主权项
地址
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