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Here are the page images for US Patent 3,897,032, "METHOD FOR OPERATING AIRSHIPS, PARTICULARLY BY MEANS OF HYDROCARBON GAS OR HYDROGEN", to Papst; a balance has been struck between size and readability:



Page 1 ...(front page)

Page 2 ...(Figs. 1 and 2)

Page 3 ...(start of the description)

Page 4 ...

Page 5 ...

Page 6 ...


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