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1 Jan 1950 Jahr - Pacemaker

Beschreibung:

Heart pacemaker was invented in a National Research Council laboratory in Ottawa by Winnipeg native John Hops to keep weak of heart alive and kicking.

Zugefügt zum Band der Zeit:

Relevant History

ByCindy Kilpatrick
7 Feb 2020

Datum:

1 Jan 1950 Jahr
Jetzt
~ 74 years ago
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