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Robert S. Willard

SP Sparton: 1 patents #27 of 62Top 45%
Overall (All Time): #4,072,583 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4338978 Lead chloride battery plate John L. Devitt, Douglas E. Johnson 1982-07-13