RD

Raymond A. Day

PH Perfection Holdings: 1 patents #14 of 29Top 50%
📍 Seven Hills, OH: #64 of 133 inventorsTop 50%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #4,117,469 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4216793 Shutoff valve Frank R. Volgstadt, Albert H. Reschke, David P. Passerell 1980-08-12