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The steam shovel is invented and eventually becomes instrumental in mechanizing surface coal mining. (30 Jan 1839 Jahr – 17 Nov 1970 Jahr)
Zugefügt zum Band der Zeit:
coal timeline
By
hose
8 Dez 2017
0
0
380
Datum:
30 Jan 1839 Jahr
17 Nov 1970 Jahr
~ 131 years
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