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The ornamental design for a duct canister for carrying and storing sections of a flexible duct used with portable ventilators as shown and described. |
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FIG. 1 is a front and right side perspective view of a duct canister for carrying and storing sections of a flexible duct used with portable ventilators, showing my new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The fragmentary criss-cross pattern shown on the front strip in FIGS. 1, 2, and 3, is shown partially for ease of illustration, and is understood to extend throughout the strip.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jun 15 1990 | CHUMSAE, MARK S | Coppus Engineering Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 005335 | /0868 | |
| Jun 18 1990 | Coppus Engineering Corporation | (assignment on the face of the patent) | / | |||
| Dec 04 2006 | Coppus Engineering Corporation | Dresser-Rand Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 018816 | /0925 |
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