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The ornamental design for a push button switch, as shown and described. |
FIG. 1 is a perspective view of a push button switch depicting my invention;
FIG. 2 is a side elevational view taken toward the right side of FIG. 1, the left side elevational being identical;
FIG. 3 is an end elevational view taken toward the left end in FIG. 1, the right end elevational view being identical;
FIG. 4 is a bottom plan view of a push button switch depicting my invention;
FIG. 5 is a top plan view of a preferred embodiment of a push button switch depicting my invention; and,
FIG. 6 is a top plan view of a push button switch depicting a second embodiment of my invention. All other views are the same as to first embodiment except for the top surface of the button.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 21 1992 | GIERUT, JOSEPH J | ILLINOIS TOOL WORKS INC , A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 006174 | /0150 | |
Jun 09 1992 | Illinois Tool Works Inc. | (assignment on the face of the patent) | / |
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