|
The ornamental design for a combined filter element and frame therefor, as shown and described. |
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FIG. 1 shows a perspective view of a first embodiment of a filter apparatus, according to the present invention;
FIG. 2 shows a top plan view thereof, a bottom plan view not being shown as it is a mirror image of the top plan view;
FIG. 3 shows a front elevational view thereof, a rear elevational view not being shown as it is a mirror image of the front elevational view;
FIG. 4 shows a right side elevational view thereof, a left side elevational view not being shown as it is a mirror image of the right side elevational view;
FIG. 5 shows a perspective view of a second embodiment of a filter apparatus, according to the principles of the present invention;
FIG. 6 shows a top plan view thereof, a bottom plan view not being shown as it is a mirror image of the top plan view;
FIG. 7 shows a front elevational view thereof, a rear elevational view not being shown as it is a mirror image of the front elevational view; and,
FIG. 8 shows a right side elevational view thereof, a left side elevational view not being shown as it is a mirror image of the right side elevational view.
Gillingham, Gary R., Risch, Daniel T., Matthys, Bernard A., Tokar, Joseph C.
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| Jun 19 1996 | RISCH, DANIEL T | Donaldson Company, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 008179 | /0374 | |
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