Throughout the second half of the 19th century, many technologies converged to advance elevator speed, strength and safety. In the 1860s William Miller developed a steam powered, belt driven model with screw-and-cog gearing.
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Details
Creative#:
TOP07371428
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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