HL

Harry J. Ledgerwood

TL The Plessey Company Limited: 4 patents #1 of 25Top 4%
📍 Marshfield, MO: #4 of 21 inventorsTop 20%
🗺 Missouri: #4,278 of 23,789 inventorsTop 20%
Overall (All Time): #1,054,251 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5649713 Gasket for hub and spigot pipe joints 1997-07-22
4580710 Stock feeder with hydraulic shock absorber 1986-04-08
4538839 Pipe joint coupling 1985-09-03
4513899 Stock feeder with adjustable width feed path 1985-04-30
4493447 High speed article feeding apparatus 1985-01-15