Optimum adjustable handles, etc. all types with several soluble ergonomic handles

摘要

Optimum adjustable handles, etc. All types with several soluble ergonomic handles according to 1-55, marked by that on actual main tools, ballpoint pens, broomsticks, knives, cutlery, vessels, any tool handles, etc. (10) several ergonomically optimally shaped supplementary casings (20, 30, 40) solubly screwed up (59) respectively. are postponed (50)