EM

Ernst Martens

📍 Winnipeg, CA: #458 of 1,797 inventorsTop 30%
Overall (All Time): #2,303,921 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5238374 Apparatus for controlling density profile in a concrete extruded slab — 1993-08-24
4710112 Auger construction for machines for forming hollow core concrete slabs — 1987-12-01