Patent Drawing of Engine - Kruesi-Rohr US-Pat 296185 - . Public domain  image

Patent Drawing of Engine - Kruesi-Rohr US-Pat 296185 - . Public domain image

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Deutsch: Darstellung eines Kruesi-Rohrs in Fig. 4. Darüber in Fig1 & 2: Kabelmuffe

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Date

1884
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USPTO
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public domain

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