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US4193188A Flexible saw 失效
柔性锯

Flexible saw
摘要:
This invention pertains to means for and a method of trimming branches of trees and particularly branches high above the ground, by means of spaced cutting collars with sharp teeth at one end crimped upon a flexible cable, without using a pole saw, climbing the tree, or using a ladder. Means are also provided in the form of lead weights, sand bags, etc., to carry the flexible cutting table into position over the branch desired to be cut.
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