PW

Penjan Worapong

SP Seiko Precision: 2 patents #55 of 173Top 35%
📍 Pathum Thani, TH: #18 of 102 inventorsTop 20%
Overall (All Time): #1,954,521 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9971231 Diaphragm device and optical instrument Takashi Nakano 2018-05-15
9658515 Diaphragm device and optical instrument Takashi Nakano 2017-05-23