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The ornamental design for a piezoelectric actuator device, as shown and described.
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FIG. 1 is a bottom perspective view of the piezoelectric actuator device of our invention;
FIG. 2 is an inverted front elevational view of the piezoelectric actuator device illustrated in FIG. 1;
FIG. 3 is a bottom plan view of the piezoelectric actuator device illustrated in FIG. 1;
FIG. 4 is a top plan view of the piezoelectric actuator device illustrated in FIG. 1; and,
FIG. 5 is a left side elevational view of the piezoelectric actuator device illustrated in FIG. 1, the right side being a mirror image thereof.
The broken line showing of the environment is for illustrative purpose only and forms no part of the claimed design.
Waterfield, L. Glenn, Maushard, Jerry P
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jun 05 2002 | MAUSHARD, JERRY P | Caterpillar Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012986 | /0797 | |
Jun 05 2002 | WATERFIELD, L GLENN | Caterpillar Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012986 | /0797 | |
Jun 06 2002 | Caterpillar Inc | (assignment on the face of the patent) | / |
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