Spade for digging trenches for irrigation pipes has blade with rectangular cross-section, sides of blade tapering towards top
- 专利权人:
- GRAF, FRIEDRICH
- 发明人:
- 申请号：
- DE200520010172U
- 公开号：
- DE202005010172(U1)
- 申请日:
- 2005.06.28
- 申请国别(地区):
- 德国
- 年份:
- 2005
- 代理人:
- 摘要：
- The spade for digging trenches for irrigation pipes has a blade (1) with a rectangular cross-section. The sides (5, 6) of the blade taper towards the top. -
- 来源网站：
- 中国工程科技知识中心
