HO

Humio Ohta

AH Asahi Group Holdings: 1 patents #28 of 107Top 30%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5192420 Vibration damper obtained by adjusting the resin and aromatic components of the asphalt base Tadahiko Matsumzawa 1993-03-09