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Increasing the Power of Internal Combustion Engines (1925)
NASA Technical Reports Server (NTRS) · leaf 15
I-'ig. 6 H.A.C.A. Technical Memorandum No. 321 … Fig. 6 Zoller CompressorNASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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