HA

Horst Appelmann

📍 Pickering, CA: #3 of 9 inventorsTop 35%
Overall (1989): #25,459 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4872285 Quarter point return mechanism for manually operated revolving doors — 1989-10-10
4800679 Quarter point return mechanism for manually operated revolving doors — 1989-01-31