The Secret Life of the Sewing Machine
The first patent for a sewing machine was taken out by an English cabinetmaker called Thomas Saint in 1790. It's doubtful whether he actually built his design, because, when one was made from his drawings 100 years later, it had to be extensively modified to work.
heating system washing
SERIES 2: car internal combustion engine quartz watch telephone radio set video recorder
SERIES 3: fax machine lift word processor electric light photocopier the office
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