DM

Daniel Madsen

HL Hall Labs: 1 patents #14 of 35Top 40%
Overall (2023): #471,973 of 537,848Top 90%
1
Patents 2023

Issued Patents 2023

Patent #TitleCo-InventorsDate
11686145 Shaft mounted overhead door operator, clutch and kit therefor David R. Hall 2023-06-27