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The ornamental design for a portable ultrafiltration unit, as shown. |
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FIG. 1 is a front perspective view of a portable ultrafiltration unit showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a side elevational view thereof; and,
FIG. 6 is an opposite side elevational view thereof.
Thalmann, William H., Siegler, Thomas W.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 30 1990 | THALMANN, WILLIAM H | Infinitex | ASSIGNMENT OF ASSIGNORS INTEREST | 005335 | /0296 | |
| May 30 1990 | SIEGLER, THOMAS W | Infinitex | ASSIGNMENT OF ASSIGNORS INTEREST | 005335 | /0296 | |
| Jun 04 1990 | Infinitex | (assignment on the face of the patent) | / |
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