The Father of Invention -- The Quick-Strap solution

Kawakita’s own invention is a simple device that he created as a result of his own observations. Watching commuters travelling on the train around Tokyo, he noticed that even the slickest and tidiest of them would often have the large shoulder strap of their cases or bags dangling on the floor—particularly when in a situation demanding they carry their baggage by the handles. Not only does this jar with an otherwise well-presented appearance, it is also unhygienic to have a long strap picking up dirt and worse from the floor, to be transferred to the shoulder later on.

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The Father of Invention -- The Quick-Strap solution