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发明名称
Apparatus for making ducts
摘要
申请公布号
US2143449(A)
申请公布日期
1939.01.10
申请号
US19360093787
申请日期
1936.08.01
申请人
INNIS O'ROURKE
发明人
O'ROURKE INNIS
分类号
B28B21/26
主分类号
B28B21/26
代理机构
代理人
主权项
地址
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