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The ornamental design for a mobile electrostatic air filter, as shown and described. |
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FIG. 1 is a right side elevational view of a mobile electrostatic air filter showing our new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
Hedlund, Per N., Jonasson, Alf I. S.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 26 1990 | HEDLUND, PER NIKLAS | AB PH NEDERMAN & CO | ASSIGNMENT OF ASSIGNORS INTEREST | 005503 | /0111 | |
| Oct 08 1990 | JONASSON, ALF I S | AB PH NEDERMAN & CO | ASSIGNMENT OF ASSIGNORS INTEREST | 005503 | /0111 | |
| Oct 15 1990 | AB Ph. Nederman & Co. | (assignment on the face of the patent) | / |
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