Mechanical bird or ornithopter, driven by twisted rubber bands, by Alphonse P?naud (1850 1880), 19th-century French pioneer of aviation design and engineering. P?naud is re-ported to have begun vork on this model at the end of 1871.
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Details
Creative#:
TOP21176721
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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