Harold R. Piszczek

TL The Singer Company Limited: 1 patents #229 of 510Top 45%

📍 Dover, NJ: #407 of 708 inventorsTop 60%

🗺 New Jersey: #41,174 of 69,400 inventorsTop 60%

Overall (All Time): #4,028,344 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4427165	Sewing machine thread guide with protective guard	Robert H. Larsen	1984-01-24