RG

Robert Granzotto

UN Unknown: 1 patents #145 of 1,640Top 9%
📍 Toronto, CA: #38 of 155 inventorsTop 25%
Overall (1989): #63,270 of 140,708Top 45%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4874143 Tape cassette having rewind control mechanism Richard J. Armstrong 1989-10-17