H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 1/66 (2006.01) H04M 1/663 (2006.01)
Patent
CA 2090536
Abstract of the Invention Method and apparatus for screening telephone calls for use in conjunction with a telephone set as, opposed to a switch, which provides a capability of storing a telephone number for use in blocking calls from the telephone number, without the need for re-entering the telephone number.
Ford Gordon D.
Iglehart David
Fetherstonhaugh & Co.
Rolm Company
LandOfFree
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