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发明名称
Doorcheck
摘要
申请公布号
US1946837(A)
申请公布日期
1934.02.13
申请号
US19320637639
申请日期
1932.10.13
申请人
WALTER CLAYTON
发明人
CLAYTON WALTER
分类号
E05D11/10
主分类号
E05D11/10
代理机构
代理人
主权项
地址
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