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发明名称
METHOD OF MAKING BOILERS
摘要
申请公布号
CA304643(A)
申请公布日期
1930.10.07
申请号
CAD304643
申请日期
申请人
THE BIRCHFIELD BOILER COMPANY
发明人
ROBERT W. BIRCHFIELD
分类号
主分类号
代理机构
代理人
主权项
地址
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