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RS

Robert J. Sperzel

Surheim, OH: #1 of 1 inventorsTop 100%
Overall (2002): #125,695 of 266,432Top 50%
1 Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6444886 Musical instrument Ronald R. Spercel 2002-09-03

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Roxanne P. Spencer1