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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Creative#:

TOP23728794

Source:

達志影像

Authorization Type:

RM

Release Information:

須由TPG 完整授權

Model Release:

No

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No

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No

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