YS

Yoshihisa Shibayama

NC Nippon Electric Co.: 1 patents #251 of 792Top 35%
Overall (All Time): #4,124,580 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4236049 Electronic key telephone system Ryoichi Tanihata, Tsunehiko Shimazawa 1980-11-25