RJ

Ralph E. Johnson

TL The Singer Company Limited: 2 patents #7 of 112Top 7%
📍 Madison, NJ: #6 of 35 inventorsTop 20%
🗺 New Jersey: #309 of 2,847 inventorsTop 15%
Overall (1982): #9,003 of 81,411Top 15%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4341171 Thread handling device for lockstitch sewing machines 1982-07-27
4320712 Thread handling 1982-03-23