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经营范围
发明名称
Machine for creasing sheet material
摘要
申请公布号
US1978157(A)
申请公布日期
1934.10.23
申请号
US19330674450
申请日期
1933.06.05
申请人
发明人
GREENWOOD HENRY B.
分类号
B31B1/25
主分类号
B31B1/25
代理机构
代理人
主权项
地址
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