Oxygen Diving Unit 20 Correspondence: John T. Oleksy to C.J. LambertsenOlesky, JTDear Dr. Lambertsen: Under separate cover we mailed you a complete set of prints for the Diving Unit LARU T-4 to replace those returned to this office for use in making drawings for the "Flatus" SCUBA. We will be able to make the drawings for "Flatus" SCUBA sometime in July; however, in order to incorporate the modifications you are presently making it will be necessary to examine the completed prototype. Please inform us as to the date these modifications will be completed so that we can either come to Philadelphia or expect to have Flatus delivered here. Sincerely yours, John T. Oleksy, Cdr., USN, Head, Miscellaneous and Navigational Equipment Branch, Ship-Technical Div. By DirectionThe items forming the Rubicon Research Repository Christian J. Lambertsen collection are generously donated by the Lambertsen Family. All items in this collection are released through Creative Commons Attribution + Noncommercial + ShareAlike (BY-NC-SA) licenses in an attempt to encourage the use of these works to further scientific understanding of physiology.

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