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Medical devices
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Devices, machines, vehicles and robots
Medicine, drugs and healthcare
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r/HistoryPorn - A man wearing an external, battery-operated heart pacemaker, New York, 1960 [1354x2048]
https://www.reddit.com/r/HistoryPorn/comments/aeiucc/a_man_wearing_an_external_batteryoperated_heart/
Medical devices