Number | Name | Date | Kind |
---|---|---|---|
D. 342472 | Harper | Dec 1993 | |
D. 370881 | Thomas | Jun 1996 | |
D. 375065 | Duvernay et al. | Oct 1996 | |
D. 415986 | Stech | Nov 1999 | |
4060331 | Domer et al. | Nov 1977 | |
4596406 | Van Vleet et al. | Jun 1986 | |
4889356 | Morris | Dec 1989 | |
4938496 | Thomas et al. | Jul 1990 | |
5040817 | Dunn | Aug 1991 | |
5085452 | Janeiro | Feb 1992 | |
5116072 | Swenson | May 1992 | |
5169168 | Harry et al. | Dec 1992 | |
5290057 | Pellerito | Mar 1994 |
Entry |
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Valley Industries, “Ball Mounts,” Catalogue Page, Date Unknown, pp. B 13-B 14. |
Titan Industries, “Adapt Hitch Ball, Interchangeable Trailer Hitch Ball System,” Brochure, Date Unknown, pp. 1-4, Wyandotte, MI. |