Chicago, Illinois
United States
2
2014-03-13
Mark Sutherland from Chicago, US has applied for patents for these inventions. The list has both pending applications and granted patents:
DRAIN COVER FOR GENERALLY OPEN FLAT DRAINAGE AREAS WITH DEBRIS BLOCKAGE AND OPEN DRAINAGE PORTIONS
Drain cover for generally open flat drainage areas with debris blockage and open drainage portions
682429 ⎘