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The ornamental design for a chemical medium filter cartridge, as shown. |
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FIG. 1 is a side elevation view of a chemical medium filter cartridge showing my new design;
FIG. 2 is a bottom plan view thereof; and
FIG. 3 is a top plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 23 1988 | Pressure Systems, Inc. | (assignment on the face of the patent) | / | |||
| Oct 13 1989 | SEXTON, JOHN M | PRESSURE SYSTEMS, INC , D B A EAGLE AIR SYSTEMS | ASSIGNMENT OF ASSIGNORS INTEREST | 005181 | /0267 |
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