发明名称 Apparatus for practicing knot tying and method of use
摘要 An apparatus for practicing knot tying (20) includes a base (22) to which is attached an inverted U-shaped member (24). A chain (44) is connected between the arms (40, 42) of the U-shaped member. A user then uses a rope (46) to practice tying knots about the U-shaped member and the chain. The chain can also be used to affix a rope for practicing the tying of bends. Knot-tying instruction cards (48) assist in the practice process.
申请公布号 US6217086(B1) 申请公布日期 2001.04.17
申请号 US19990407698 申请日期 1999.09.28
申请人 LETOURNEAU DANA 发明人 LETOURNEAU DANA
分类号 B65H69/04;G09B19/00;(IPC1-7):B65H69/04 主分类号 B65H69/04
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