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经营范围
发明名称
TELEPHONE SECURITY DEVICE
摘要
申请公布号
US4099033(A)
申请公布日期
1978.07.04
申请号
US19760742090
申请日期
1976.11.16
申请人
MURRAY, LEONARD QUINTIN
发明人
MURRAY, LEONARD QUINTIN
分类号
H04M1/673;H04M1/677;(IPC1-7):H04M1/66
主分类号
H04M1/673
代理机构
代理人
主权项
地址
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