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Image: US720818-Rotary engine. (1)

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Original image(1,824 × 2,906 pixels, file size: 2.19 MB, MIME type: image/jpeg)

Description: Patent held by Margareth E. Knight
Title: US720818-Rotary engine. (1)
Credit: Google Patent
Author: Margareth E. Knight
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

The following page links to this image:

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