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The ornamental design for an ultrasonic transducer, as shown and described.
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FIG. 1 is a perspective view of a new, original, and ornamental design of a preferred embodiment of the present invention.
FIG. 2 is a front elevational view thereof.
FIG. 3 is a side elevational view thereof.
FIG. 4 is a rear elevational view thereof.
FIG. 5 is a top plan view thereof.
FIG. 6 is a second side elevational view thereof; and,
FIG. 7 is a bottom plan view thereof.
Kaiser, Donald, Valery, Jeff, McCullough, Earl
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 22 1997 | American Sigma, Inc. | (assignment on the face of the patent) | / |
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