RH

Ryohei Hirota

HC Hirota & Co.: 1 patents #2 of 2Top 100%
Overall (All Time): #3,593,591 of 4,157,543Top 90%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6287109 Child-proof locking mechanism for lighter — 2001-09-11