How helicopters are made
[Rev. ed.]
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Word Count
16,000 words, Guess
Page Count
64 pages
Identifiers
- Library of Congress Control Number68027438
- Open LibraryOL5618766M
Classifications
- DDC629.133
- LCCTL716 .C65 1968
Description
Describes how a helicopter is conceived, designed, manufactured, and taken on its first flight.
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