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发明名称
Method of connecting tubes in series
摘要
申请公布号
US2027200(A)
申请公布日期
1936.01.07
申请号
US19340741233
申请日期
1934.08.24
申请人
JAMES ROBERTSON;PURDY GEORGE H
发明人
ROBERTSON JAMES;PURDY GEORGE H.
分类号
B21C37/28
主分类号
B21C37/28
代理机构
代理人
主权项
地址
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