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The ornamental design for a combined air conditioning unit and duct system, as shown. |
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FIG. 1 is a perspective view taken from the top, front and right side of a combined air conditioning unit and duct system showing my new design; and
FIG. 2 is a perspective view taken from the top, rear and left side thereof .
Bolton, Theodore S., Lang, Richard D., Burris, John S.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 19 1980 | Carrier Corporation | (assignment on the face of the patent) | / |
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