NS

Naomi Sugita

NC Nippon Tungsten Co.: 1 patents #45 of 139Top 35%
Overall (All Time): #4,097,643 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4292078 Electrical contact material Sinya Honda, Takeshi Komura, Tatuya Okamoto 1981-09-29