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Summary

Patent US1420665, vacuum cleaner with separator without water

Deutsch: Patent US1420665, Staubsauger mit Separator ohne Wasser

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patents patent drawings us patent office vacuum cleaners inventions
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Date

27/06/1922
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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 Vacuum Cleaners, Us Patent Office, Patents

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