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发明名称
Apparatus for crowning internal gears
摘要
申请公布号
US2277041(A)
申请公布日期
1942.03.24
申请号
US19370148225
申请日期
1937.06.14
申请人
DRUMMOND ROBERT S
发明人
DRUMMOND ROBERT S.
分类号
B23F19/00;B23F19/06
主分类号
B23F19/00
代理机构
代理人
主权项
地址
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