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经营范围
发明名称
Saw sharpening tool
摘要
申请公布号
US1906881(A)
申请公布日期
1933.05.02
申请号
US19320592089
申请日期
1932.02.10
申请人
LUDWIG OLAS
发明人
OLAS LUDWIG
分类号
B23D63/10
主分类号
B23D63/10
代理机构
代理人
主权项
地址
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