AA

Akio Ando

OC Osaka Gas Co.: 1 patents #252 of 689Top 40%
Overall (All Time): #3,889,197 of 4,157,543Top 95%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5062926 Solvent recovery apparatus Takeshi Maeda, Hiroshi Kawaguchi, Harukazu Yamaguchi, Hitoshi Sakai, Yasuo Matsushita +1 more 1991-11-05