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发明名称
Parking device
摘要
申请公布号
US2738885(A)
申请公布日期
1956.03.20
申请号
US19530335954
申请日期
1953.02.09
申请人
DEMALINE DONALD R
发明人
DEMALINE DONALD R.
分类号
E04H6/16
主分类号
E04H6/16
代理机构
代理人
主权项
地址
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