Inventor
PIEPER JAMES CALVIN
US4 patents
Patents
4 patentsUS6944978B2Sep 20, 2005
Snowplow and mount assembly
DOUGLAS DYNAMICS LLC43 citations92
US7681334B2Mar 23, 2010
Snowplow and mount assembly
DOUGLAS DYNAMICS LLC16 citations89
US7430821B2Oct 7, 2008
Snowplow and mount assembly
DOUGLAS DYNAMICS LLC16 citations89
US7797859B2Sep 21, 2010
Snowplow and mount assembly
DOUGLAS DYNAMICS LLC12 citations80