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发明名称
Door operating device
摘要
申请公布号
US2443317(A)
申请公布日期
1948.06.15
申请号
US19460713477
申请日期
1946.12.02
申请人
E. LONG LIMITED
发明人
LANCASTER ARTHUR WESLEY
分类号
B61D7/26
主分类号
B61D7/26
代理机构
代理人
主权项
地址
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