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Garden row locator and marker
专利权人:
BROOM, D. DWAYNE
发明人:
BROOM, D. DWAYNE
申请号:
US19770812451
公开号:
US4141146(A)
申请日:
1977.07.05
申请国别(地区):
美国
年份:
1979
代理人:
摘要:
A device for planting a garden in straight rows comprising two stakes and a line held taut between the stakes, one end of the line being wound around a spool mounted to a clip of adjustable height on one stake and the other end of the line being affixed to a clip of adjustable height on the other stake. The device further comprises a distance measuring means attached to at least one of the stakes to locate the next row.
来源网站:
中国工程科技知识中心
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