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经营范围
发明名称
Friction-wheel regulating gear
摘要
申请公布号
US2451033(A)
申请公布日期
1948.10.12
申请号
US19450610439D
申请日期
1945.08.13
申请人
ERNST KREBS
发明人
KREBS ERNST
分类号
F16H15/22
主分类号
F16H15/22
代理机构
代理人
主权项
地址
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