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发明名称
Ramp
摘要
申请公布号
US1884513(A)
申请公布日期
1932.10.25
申请号
US19310543182
申请日期
1931.06.09
申请人
WRIGHT BARCLAY
发明人
BARCLAY WRIGHT
分类号
B60P1/43
主分类号
B60P1/43
代理机构
代理人
主权项
地址
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