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Axel M. Heden, deceased

SU Superscope: 1 patents #3 of 5Top 60%
📍 San Fernando, CA: #1,178 of 2,303 inventorsTop 55%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #4,121,579 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4227590 Grille for loudspeaker cabinet John R. Ballantyne 1980-10-14