aakshiisrivastav aakshiisrivastav

03-05-2017
English

contestada

importance of
labor saving devices

Respuesta :

Nathinchhay Nathinchhay

03-05-2017

Labor-saving devices are inventions that reduce the time and effort needed to perform or complete a task. Farm equipment, home appliances and construction equipment are examples of mechanical inventions that save time and physical labor.

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