TW

Tsutomu Watabe

SC Shigematsu Works Co.: 1 patents #11 of 16Top 70%
Overall (All Time): #3,701,338 of 4,157,543Top 90%
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Patent #TitleCo-InventorsDate
5829433 Inhalation valve Nobuo Shigematsu, Kenichi Ono 1998-11-03