HA

Harold F. Armstrong

📍 Milford, NH: #78 of 173 inventorsTop 50%
🗺 New Hampshire: #5,349 of 12,181 inventorsTop 45%
Overall (All Time): #2,304,194 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5242251 Broach and process of manufacturing a broach Bruce K. Bakaian 1993-09-07
4357122 Inserted blade end mill Thomas J. Hollis 1982-11-02