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US2085800.pdf (file size: 305 KB, MIME type: application/pdf)

Patent No. 2,085,800. "Combustion Apparatus"; granted to Robert H. Goddard, of Roswell, New Mexico.

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current22:43, 1 April 2020 (305 KB)RobertG (Talk | contribs) (Patent No. 2,085,800. "Combustion Apparatus"; granted to Robert H. Goddard, of Roswell, New Mexico.)

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