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经营范围
发明名称
Automatic drill pointer
摘要
申请公布号
US2810992(A)
申请公布日期
1957.10.29
申请号
US19560561752
申请日期
1956.01.27
申请人
NATIONAL GYPSUM COMPANY
发明人
EINHIPLE JOHN A.
分类号
B24B3/24
主分类号
B24B3/24
代理机构
代理人
主权项
地址
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