Inventor
HANSON DAVID W
7 patents
Patents
7 patentsUS4644727AFeb 24, 1987
Strand chair for supporting prestressing cable and cross-mesh in elongated precast concrete plank
FABCON INC38 citations89
US4457682AJul 3, 1984
Machine for casting concrete members
FABCON INC20 citations71
US4398761AAug 16, 1983
Device for lifting and tilting concrete panels
FABCON INC14 citations71
US4369153AJan 18, 1983
Machine for casting concrete members
FABCON INC18 citations71
US4329184AMay 11, 1982
Rock aggregate core material washing and recycling
FABCON INC9 citations71
US4360333ANov 23, 1982
Aggregate exposing machine
FABCON INC8 citations70
US5318426AJun 7, 1994
Brick imprinting apparatus
FABCON INC15 citations69