Chester MacDuffee, 1914. Picture №54 [💰↻%]
In 1914, Chester MacDuffee constructed the first suit with ball bearings, as the medium to provide movement to a joint. The suit was tested in New York in 214 feet of water.
Source: https://pinterest.com/pin/431993789245574805/
There is a refund program.
Payments after 7 days.
https://steemit.com/steemit/@homsys/refund-program
that must have cost a lot
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