Powered vehicle controlled by harvesting worker
作者： Olson John Harold
DOI:
关键词:
摘要:
lens.org 参考文章(4)
Rosenthal Harry, George E Slaboch, Motorized wheel chair steered by driving ,(1954)
Jacob D W Williams, Berry-picker's vehicle ,(1928)
Richardson George G, COTTON-PICKER'S WAGON. ,(1904)
Charles L Page, Method of knitting ,(1944)