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Production. Pratt and Whitney airplane engines. Inspecting tappet rollers for Pratt and Whitney airplane motors at a large…
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Production. Pratt and Whitney airplane engines. Inspecting tappet rollers for Pratt and Whitney airplane motors at a large Eastern plant. One careful inspection after another insures that all working parts of our airplane engines are made as accurately as possible. Pratt and Whitney Aircraft. Sourced from the Library of Congress.

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Production. Pratt and Whitney airplane engines. Inspecting tappet rollers for Pratt and Whitney airplane motors at a large Eastern plant. One careful inspection after another insures that all working parts of our airplane engines are made as accurately as possible. Pratt and Whitney Aircraft. Sourced from the Library of Congress.

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