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经营范围
发明名称
Automatic variable speed mechanism
摘要
申请公布号
US1867590(A)
申请公布日期
1932.07.19
申请号
US19300438441
申请日期
1930.03.24
申请人
PORTER FINLEY R
发明人
PORTER FINLEY R.
分类号
F16H33/08
主分类号
F16H33/08
代理机构
代理人
主权项
地址
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