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 ... Back to the prior art page... Back to the top page... ---ooo000ooo---
