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发明名称
ACTIVE ELECTRO-OPTICAL INTRUSION ALARM SYSTEM HAVING AUTOMATIC BALANCING MEANS
摘要
申请公布号
US3597755(A)
申请公布日期
1971.08.03
申请号
USD3597755
申请日期
1968.05.28
申请人
SANDERS ASSOCIATES INC.
发明人
WILLIAM J. PARKIN
分类号
G08B13/187;(IPC1-7):G08B13/18;G01T1/16
主分类号
G08B13/187
代理机构
代理人
主权项
地址
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