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经营范围
发明名称
Self-cleaning, non-clogging, traveling grizzly
摘要
申请公布号
US1822739(A)
申请公布日期
1931.09.08
申请号
US19290414747
申请日期
1929.12.17
申请人
JONAS LIEN
发明人
LIEN JONAS
分类号
B07B1/10
主分类号
B07B1/10
代理机构
代理人
主权项
地址
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