Sketch of the Danish inventor Hjorth's electro-magnetic motive engine. The motor was a significant development from earlier electro-magnetic engines, as it eliminated the electric spark that produced a destroying effect on conducting metals. This in turn broke the current, which had previously been a problem in engines of this type.
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Details
Creative#:
TOP23728794
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
No
Property Release:
No
Right to Privacy:
No
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