DB

Donald T. Barber

DL Datafile Limited: 2 patents #1 of 2Top 50%
📍 Willowdale, CA: #1 of 11 inventorsTop 10%
Overall (1982): #14,975 of 81,411Top 20%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4329191 System for alphabetically labelling articles 1982-05-11
4312453 File hanging system 1982-01-26