Inventor
KARPICKE JOHN A
US3 patents
Patents
3 patentsUS5528680AJun 18, 1996
Apparatus and method for accessing and maintaining a caller-ID based telephone directory
AT & T CORP52 citations87
USD365821SJan 2, 1996
Personal information center telephone set
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US5388153AFeb 7, 1995
Apparatus and method for detecting telephone line status
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