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发明名称
Ruler
摘要
申请公布号
US1984273(A)
申请公布日期
1934.12.11
申请号
US19330682700
申请日期
1933.07.28
申请人
ARTHUR KUECHENMEISTER
发明人
KUECHENMEISTER ARTHUR
分类号
B43L7/00
主分类号
B43L7/00
代理机构
代理人
主权项
地址
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