Electric rotary lawnmower and grass collection bag

作者: Charles A Mattson

DOI:

关键词: Computer science

摘要:

参考文章(4)
Slemmons Arthur John, Rotary mower and grass catcher ,(1963)
Francis R Mcneill, Abel Frederick, Power mower with cord securing clip ,(1953)
Edwin P. Campbell, Grass catcher for rotary mowers ,(1960)