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The ornamental design for a trailer hitch alignment unit, as shown. |
FIG. 1 is a front elevational view of a trailer hitch alignment unit showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
Patent | Priority | Assignee | Title |
10252588, | Jul 10 2006 | PROGRESS MFG LLC | Trailer hitch system |
6612603, | Sep 07 2001 | Trailer hitch alignment system | |
8490999, | Jul 10 2006 | PROGRESS MFG LLC | Trailer hitch system |
D510894, | Feb 25 2005 | Trailer hitch alignment system |
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