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Patent Drawing of Engine - US2172670- Figure 2 Public domain image

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Summary

Bourke engineDeutsch: Kurbelschlaufenmotor

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patents patent drawings us patent office bourke engine high resolution inventions
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Date

12/05/1936
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Source

USPTO
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Link

http://uspto.gov/
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Copyright info

public domain

label_outline Explore Bourke Engine

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patents patent drawings us patent office bourke engine high resolution inventions