EL

Edward R. Langfield

📍 Glen Rock, NJ: #4 of 9 inventorsTop 45%
🗺 New Jersey: #754 of 2,847 inventorsTop 30%
Overall (1982): #67,644 of 81,411Top 85%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4320924 Reciprocated concrete surfacer member with shielded spring return James L. Hile, David L. Hird 1982-03-23