USPC 440/5

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USPC 440/5 was a classification for patents about hydraulic fluid drive to propel marine craft.[1] It's for devices in which a liquid under pressure drives an impeller which rotates a drive shaft to supply the motive force to a propelling means.

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This wiki has 1 patents in category "USPC 440/5".

Patents in category USPC 440/5


Enclosing categories USPC 440
Subcategories
Keywords Marine
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