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发明名称
Automatic door opener
摘要
申请公布号
US1930824(A)
申请公布日期
1933.10.17
申请号
US19320616674
申请日期
1932.06.11
申请人
DONATO PALUMBO
发明人
PALUMBO DONATO
分类号
E05F13/04
主分类号
E05F13/04
代理机构
代理人
主权项
地址
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