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The ornamental design for a trailer hitch system, as shown and described.
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FIG. 1 is a front perspective view of a trailer hitch system of the present invention;
FIG. 2 is a top plan view thereof;
FIG. 3 is a left-side elevational view thereof;
FIG. 4 is a right-side elevational view thereof;
FIG. 5 is a bottom plan view thereof.
FIG. 6 is a rear elevational view thereof; and,
FIG. 7 is front elevational view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 05 2003 | Pivit Hitch, Inc. | (assignment on the face of the patent) | / | |||
| Apr 01 2003 | STETTLER, DANA | PIVIT HITCH, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016491 | /0410 | |
| Mar 13 2006 | PIVIT HITCH, INC | Rowland & Hunsucker LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 017422 | /0721 | |
| Mar 08 2007 | Rowland & Hunsucker LLC | PIVIT HITCH, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 019069 | /0505 | |
| Jul 03 2007 | PIVIT HITCH, INC | LIPPERT COMPONENTS, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 019529 | /0836 |
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