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经营范围
发明名称
Variable speed friction gear
摘要
申请公布号
US1971129(A)
申请公布日期
1934.08.21
申请号
US19330680315
申请日期
1933.07.13
申请人
EJNAR CHRISTIANSEN
发明人
CHRISTIANSEN EJNAR
分类号
F16H15/38
主分类号
F16H15/38
代理机构
代理人
主权项
地址
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