HH

Heima Hirai

CH Chisso: 1 patents #468 of 833Top 60%
Overall (All Time): #4,101,579 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4303619 Apparatus for continuously producing potassium sulfate Kazuo Kobayashi 1981-12-01