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发明名称
Split drawing
摘要
申请公布号
US2181777(A)
申请公布日期
1939.11.28
申请号
US19370155799
申请日期
1937.07.26
申请人
ARTHUR ASBELLE JULIUS
发明人
ASBELLE JULIUS ARTHUR
分类号
B21C47/04;D01H5/72
主分类号
B21C47/04
代理机构
代理人
主权项
地址
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