DP

David F. Penrose

UN Unknown: 2 patents #12,644 of 83,584Top 20%
📍 Christchurch, NZ: #160 of 627 inventorsTop 30%
Overall (All Time): #2,272,799 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5685762 De-boxing apparatus for honey frames Roland A. Hitchcox, deceased, Neil M. Hitchcox 1997-11-11
5662511 Honey frame feeding apparatus Roland A. Hitchcox, deceased, Neil M. Hitchcox 1997-09-02