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发明名称
New way for a door bell sender by changing the entrance of power electricity.
摘要
申请公布号
EG24980(A)
申请公布日期
2011.04.06
申请号
EG20070020054
申请日期
2007.02.01
申请人
KHALED AHMED IMAM;ASEM SHERIF AHMED;MOHAMMED HAMDI ALI
发明人
KHALED AHMED IMAM;ASEM SHERIF AHMED;MOHAMED HAMDI ALI
分类号
G08B1/08
主分类号
G08B1/08
代理机构
代理人
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