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US D298,939 SGranted
Key telephone set with speakerphone and visual display panel
AssigneeNEC Corporation
InventorsKenichi Morikawa, Masafuku Akatsu, Tatsuya Kato, Seizo Ohta, Takeshi Nakatani
Life of this patent
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Abstract
The abstract isn’t available for this document.
Claims1
The ornamental design for a key telephone set with speakerphone and visual display panel, as shown and described.