USD334171SExpiredUtility

DC to DC converter

Assignee: RO ASSPriority: Dec 31, 1991Filed: Dec 31, 1991Granted: Mar 23, 1993

Est. expiryDec 31, 2011(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a DC to DC converter, as shown and described.

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