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Inventor
BURNETT STEVEN W
US
2 patents
Patents
2 patents
US5161184A
Nov 3, 1992
Ring-back powered telephone with nonvolatile memory structure
DIGITAL TELECOMMUNICATIONS SYS
57 citations
92
US4947422A
Aug 7, 1990
Personalized telephone for automatic access to operator services
DIGITAL TELECOMMUNICATIONS SYS
43 citations
89