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发明名称
Loading ramp
摘要
申请公布号
US2461678(A)
申请公布日期
1949.02.15
申请号
US19460703180
申请日期
1946.10.14
申请人
ROLL-RITE CORPORATION
发明人
CHRISTENSEN CARL O.
分类号
B65G69/28
主分类号
B65G69/28
代理机构
代理人
主权项
地址
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