Alpo L. Marttinen

📍 Torenweg, CA: #18 of 98 inventorsTop 20%

Overall (All Time): #2,345,941 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D286697	Combined automatic dumping dust pan and broom	—	1986-11-11
4562611	Automatic dumping dust pan	—	1986-01-07