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Production. Pratt and Whitney airplane engines. Crankshaft assembles for Pratt and Whitney airplane engines must undergo a rigid inspection in a large Eastern war plant now working full tilt to supply our armed forces with power installations for our war planes. Pratt and Whitney Aircraft. Sourced from the Library of Congress.
Production. Pratt and Whitney airplane engines. Crankshaft assembles for Pratt and Whitney airplane engines must undergo a rigid inspection in a large Eastern war plant now working full tilt to supply our armed forces with power installations for our war planes. Pratt and Whitney Aircraft. Sourced from the Library of Congress.
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