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The ornamental design for an ultrasonic cleaning machine, as shown. |
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FIG. 1 is a perspective view of an ultrasonic cleaning machine showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a rear elevational view thereof; and,
FIG. 6 is a bottom plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 14 1988 | MILLER, ALAN | IPCO Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 005005 | /0339 | |
| Dec 20 1988 | IPCO Corp. | (assignment on the face of the patent) | / | |||
| Jun 01 1990 | IPCO Corporation | G H ACQUISITION CORP , A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 005604 | /0279 | |
| Jun 01 1990 | G H ACQUISITION CORP | WHALEDENT INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS JUNE 1, 1990 - DE | 005604 | /0299 | |
| Oct 02 1990 | WHALENDENT INC | COLTENE WHALEDENT INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS JUNE 1, 1990 - DE | 005604 | /0290 |
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