AC

Akira Chudo

OC Osaka Cement Co.: 1 patents #11 of 19Top 60%
Overall (All Time): #4,089,329 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4266980 Expansive solidifying material Tomomitsu Sugi, Kouji Kataoka 1981-05-12