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The ornamental design for a cannula, as shown and described. |
FIG. 1 is a front elevation of a cannula, showing our new design, the side of the cannula opposite from that of FIG. 1 being identical with what is shown in FIG. 1;
FIG. 2 illustrates the cannula of FIG. 1 as seen from the right of FIG. 1, the cannula as viewed from the left of FIG. 1 being identical with what is shown in FIG. 2;
FIG. 3 is a top plan view of the cannula of FIG. 1; and
FIG. 4 is a bottom plan view of the cannula of FIG. 1.
Pick, Ernest W., Denaro, Joseph M., Goerke, Henry R.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Sep 08 1977 | The Purdue Frederick Company | (assignment on the face of the patent) |
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