HM

Harold A. Martin

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Calumet City, IL: #36 of 82 inventorsTop 45%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,123,507 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8822798 Clutch assembly for high-hat drum cymbal — 2014-09-02