DT

Daizo Takada

OC Osaka Gas Co.: 1 patents #252 of 689Top 40%
Overall (All Time): #4,008,627 of 4,157,543Top 100%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4493635 Oxygen-enriched air ratio control device for combustion apparatus Hirosato Ito 1985-01-15