DH

Derek W. Heywood

BL Bip Chemicals Limited: 1 patents #4 of 13Top 35%
Overall (All Time): #3,867,800 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4985040 Treatment of woollen textile material Stuart B. Howarth 1991-01-15