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发明名称
Method of producing undulating tubes for sectional chambers of boilers
摘要
申请公布号
GB362722(A)
申请公布日期
1931.12.10
申请号
GB19310000859
申请日期
1931.01.09
申请人
VEREINIGTE STAHLWERKE AKTIENGESELLSCHAFT
发明人
分类号
B21C37/15
主分类号
B21C37/15
代理机构
代理人
主权项
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