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John A. Spisak

TD The Pipe Line Development: 1 patents #6 of 13Top 50%
📍 Avon, OH: #166 of 260 inventorsTop 65%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,928,371 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4832379 Collet grip riser fitting Edward B. Smith, III, William B. Smith, Elmer V. Rogers Jr. 1989-05-23