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发明名称
Razor blade sharpener
摘要
申请公布号
US2018985(A)
申请公布日期
1935.10.29
申请号
US19320632901
申请日期
1932.09.13
申请人
MERGENTHALER LINOTYPE COMPANY
发明人
WALSH JOHN B.
分类号
B24D15/08
主分类号
B24D15/08
代理机构
代理人
主权项
地址
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