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The ornamental design for a charger unit for battery powered diagnostic instruments, as shown and described. |
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FIG. 1 is a front elevation of a charger unit for battery powered diagnostic instruments embodying my new design;
FIG. 2 is a rear elevation thereof;
FIG. 3 is a right side elevation thereof; the left side elevation being a mirror image of the right side elevation;
FIG. 4 is a top plan view thereof; and
FIG. 5 is a bottom plan view thereof.
The broken lines are shown for illustrative purposes only.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 20 1977 | Welch Allyn, Inc. | (assignment on the face of the patent) | / |
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