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发明名称
Indexing mechanism
摘要
申请公布号
US2972487(A)
申请公布日期
1961.02.21
申请号
US19590808763
申请日期
1959.04.24
申请人
JOHN LANG & SONS, LIMITED
发明人
BLACKBURN DONALD MACPHERSON
分类号
B23B31/177;B23B31/34;B23Q16/02
主分类号
B23B31/177
代理机构
代理人
主权项
地址
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