اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Moore, Bloomfield H., Mrs., 1824-1899
Title: Keely and His Discoveries: Aerial Navigation
Note: John Ernest Worrell Keely at Wikipedia: https://en.wikipedia.org/wiki/John_Ernst_Worrell_Keely
Language: English
LoC Class: TJ: Technology: Mechanical engineering and machinery
Subject: Keely, John Ernest Worrell, 1827-1898
Subject: Keely motor
Release Date: Jan 7, 2018
Copyright Status: Public domain in the USA.
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