Harvey M. Main

📍 Del Norte, CO: #1 of 8 inventorsTop 15%

🗺 Colorado: #10,703 of 40,980 inventorsTop 30%

Overall (All Time): #1,282,438 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
5887493	Ratchet wrench	—	1999-03-30
5005448	Speed wrench and hand grip combination	—	1991-04-09
4807500	Reversing ratchet mechanism for tools	—	1989-02-28
4791837	Speed wrench and hand grip combination	—	1988-12-20