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发明名称
Light beam detector for door openers using fiber optics
摘要
申请公布号
US5233185(A)
申请公布日期
1993.08.03
申请号
US19920843264
申请日期
1992.02.28
申请人
GMI HOLDINGS, INC.
发明人
WHITAKER, LOUIS G.
分类号
E05F15/00;G01V8/24;G08B13/186
主分类号
E05F15/00
代理机构
代理人
主权项
地址
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