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发明名称
Draft stop for vestibule and other doors
摘要
申请公布号
US1837959(A)
申请公布日期
1931.12.22
申请号
US19300436229
申请日期
1930.03.15
申请人
JOHN GASKIN ROBERT;EUGENE MAYBEE WESLEY
发明人
GASKIN ROBERT JOHN;MAYBEE WESLEY EUGENE
分类号
E06B7/18
主分类号
E06B7/18
代理机构
代理人
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