发明名称 Tool bar with slidably insertable ballast block
摘要 Ballast blocks are located within a tool bar of an agricultural implement to increase its weight. Modular blocks of concrete are inserted into the tool bars and held by end retainers. The blocks are provided with bevels and notches for cooperation with an extractor to simplify removal of blocks when this is desired.
申请公布号 US4518047(A) 申请公布日期 1985.05.21
申请号 US19820410653 申请日期 1982.08.23
申请人 HINIKER COMPANY 发明人 PETERSON, RICHARD L.;SCHEURER, ROGER J.
分类号 A01B23/04;A01B35/30;(IPC1-7):A01B23/04 主分类号 A01B23/04
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