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发明名称
Variable friction gearing
摘要
申请公布号
US1860621(A)
申请公布日期
1932.05.31
申请号
US19290365682
申请日期
1929.05.24
申请人
JOHN HOGG ROBERTSON
发明人
JOHN HOGG ROBERTSON
分类号
F16H15/22;F16H61/662
主分类号
F16H15/22
代理机构
代理人
主权项
地址
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