Key telephone system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5151933
SERIAL NO

07744503

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A key telephone system with a re-dialing feature has a memory with two memory areas. One of the two memory areas is provided for an outside-line call, and the other is provided for an internal-line call to a particular extension. Each memory area memorizes a dialed number therein and replaces a number of the last intended call, previously present in the memory area, with the most recently dialed number. A re-dialing push-button automatically retrieves the number of a last intended outside-line call, memorized in the outside-line memory area, when actuated following a selection of an outside-line call, or the number of a last intended inside-line call to a particular extension, memorized in the extension memory area, when actuated following a selection of an internal-line call to a particular extension.

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Patent Owner(s)

Patent OwnerAddress
NITSUKO CORPORATION6-1 KITAMIKATA 2-CHOME TAKATSU-KU KAWASAKI-SHI KANAGAWA 213

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abe, Kazuyuki Yokohama, JP 13 25

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