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发明名称
Disk rolling apparatus
摘要
申请公布号
US2135643(A)
申请公布日期
1938.11.08
申请号
US19360076027
申请日期
1936.04.23
申请人
PEARSON AXEL B
发明人
PEARSON AXEL B.
分类号
B21H1/02
主分类号
B21H1/02
代理机构
代理人
主权项
地址
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