US7969042_page_3

US7969042 | page 3 | https://thedailydialectics.com/pdfs/wipow/US7969042/US7969042.pdf

US 7,969,042 B2 Page 3 Lazarev, V.A.. “On Hetero-Parametric Excitation.” Zhurnal Teknicheskoi Fiziki, vol. 3, 1934, pp. 30-48 (Translation by Peter J. Pesavento available on the internet at http://nedyn.com/translations. html). Lombardo, P.P., and E.W. Sard, “Low Frequency Prototype Travel-…