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经营范围
发明名称
CAR DOOR
摘要
申请公布号
CA304072(A)
申请公布日期
1930.09.16
申请号
CAD304072
申请日期
申请人
THE YOUNGSTOWN STEEL DOOR COMPANY
发明人
JOHN P. MCWILLIAMS;FRANK DITCHFIELD
分类号
主分类号
代理机构
代理人
主权项
地址
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