Scientific American

Issue date: 12-1953

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Nov, 1953

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Apr, 1954

Ad: Strong "wrists" for America's new hay balers

Strong “wrists” for America’s new hay balers For sturdy, unfailing spur and bevel gearsâ€””wrists” that drive the tying mechanism of its “one-man” hay balerâ€” NEW IDEA looks to Lycoming for precision production.

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