Revision history of "File:Rotary Engine pg 3.png"

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  • (cur | prev) 11:53, 29 March 2009Liz (Talk | contribs). . (118 bytes) (+118). . (Rotary Engine description, pg. 3, patented 27 Nov 1888 by G. M. Sheffer. Contributed to us March 2009 by Rick Sheffer.)
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