DH

David Edward Holloway

TW The Charles Machine Works: 1 patents #133 of 211Top 65%
📍 Port Talbot, GB: #11 of 29 inventorsTop 40%
Overall (All Time): #2,263,336 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5794719 Ground boring apparatus 1998-08-18
4854398 Locating devices for soil displacement hammers 1989-08-08