USD669012SActiveUtility

High efficiency hub for pressure jet helicopters

Assignee: SPANOS MIKEPriority: Dec 22, 2011Filed: Dec 22, 2011Granted: Oct 16, 2012

Est. expiryDec 22, 2031(~5.4 yrs left)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a high efficiency hub for pressure jet helicopters, as shown and described.

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