Demonstrations of the Hickey Multi-Pulse Engine, which would eliminate valve springs and valve lifters. Four different views. View 1: Man on right points to a piece on the engine, as others look on. View 2: Man on left now points to another piece on the Hickey Multi-Pulse Engine, as others look on. View 3: An officer studies the engine as two men on right, talk. View 4: Two men discuss an engine part.
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