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发明名称
Method of corrugating metal boiler sheets
摘要
申请公布号
US1771028(A)
申请公布日期
1930.07.22
申请号
US19280329582
申请日期
1928.12.31
申请人
KEWANEE BOILER CORPORATION
发明人
BRONSON CARLOS E.;DICKSON JOSEPH F.
分类号
B21D13/02
主分类号
B21D13/02
代理机构
代理人
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地址
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