RO

Raysabro Oye

NC Nippon Filing Co.: 1 patents #1 of 4Top 25%
Overall (1997): #182,363 of 185,788Top 100%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5679308 Method of preserving porous material Takayuki Okayama, Masaaki Akagi 1997-10-21