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发明名称
Screen
摘要
申请公布号
US1953000(A)
申请公布日期
1934.03.27
申请号
US19330685455
申请日期
1933.08.16
申请人
VINCENT LUDWICK
发明人
LUDWICK VINCENT
分类号
E06B9/52
主分类号
E06B9/52
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