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发明名称
Method of making sheet material
摘要
申请公布号
US2167570(A)
申请公布日期
1939.07.25
申请号
US19340758940
申请日期
1934.12.24
申请人
MARBON CORPORATION
发明人
HECKEL HERMANN
分类号
D01F4/00
主分类号
D01F4/00
代理机构
代理人
主权项
地址
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