Trimmer and edger attachment for a power mower
作者： Louis H Hansen
DOI:
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摘要:
lens.org 参考文章(3)
Willie F Miles, Lawn edging mechanism in a lawn mower ,(1964)
Budd H Ross, Means for mounting an appliance in a counter opening ,(1957)
Purl O Lesesne, Lawn edging and trimming attachment for power mowers ,(1952)