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3 results

Jettisonable fuel tanks [Patent documents] (Item)

Patent documents for jettisonable fuel tanks (2,764,374), designed by Roy H. Anderson, William H. Cook, Jr., and David L. Dunn, September 25, 1956. Includes a written description of the mechanism, diagrams, and a list of related patents. Seventeen (17) pages.

[Letter to Mr. J. K. Whanger from Richard A. Marsen, June 19, 1939] (Item)

Letter to Mr. J. K. Whanger, Lawrence Scudder and Company, from Richard A. Marsen, Lear Developments, June 19, 1939. Provides a "general outline of the patent situation at Lear Developments." Seven typed pages and original folder labeled "L-r2 / Reports - Scudder."

[Letter to William P. Lear from Richard A. Marsen, June 20, 1939] (Item)

Letter to William P. Lear from Richard A. Marsen, June 20, 1939. Recommends that the company take a more general tone when announcing and publicizing products in order to protect Lear Developments' patents. References an Associated Press release about the Blind Landing System. Two typed pages.