KK

Kokyo Kusunoki

OC Onoda Cement Co.: 1 patents #57 of 155Top 40%
Overall (All Time): #3,968,965 of 4,157,543Top 100%
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Patent #TitleCo-InventorsDate
4645548 Process for producing non-combustible gypsum board and non-combustible laminated gypsum board Takao Take, Katsuaki Kaneko, Toshinobu Ichiba 1987-02-24