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发明名称
Doorcheck
摘要
申请公布号
US1931178(A)
申请公布日期
1933.10.17
申请号
US19320631718
申请日期
1932.09.03
申请人
THE BOYE NEEDLE COMPANY
发明人
CARLSON GUSTAV A.
分类号
E05F3/02
主分类号
E05F3/02
代理机构
代理人
主权项
地址
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