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经营范围
发明名称
Corrugator
摘要
申请公布号
US1943080(A)
申请公布日期
1934.01.09
申请号
US19330667165
申请日期
1933.04.21
申请人
LANGSTON SAMUEL M
发明人
LANGSTON SAMUEL M.
分类号
B31F1/28
主分类号
B31F1/28
代理机构
代理人
主权项
地址
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