The broken lines illustrated in the drawings form no part of the design.
The broken lines illustrated in the drawings form no part of the design.
Number | Name | Date | Kind |
---|---|---|---|
2551509 | Smith | May 1951 | A |
3096917 | Gudiksen | Jul 1963 | A |
4571760 | Kassai | Feb 1986 | A |
5947552 | Wilkins et al. | Sep 1999 | A |
6257659 | Wilkins et al. | Jul 2001 | B1 |
6390555 | Wilkins et al. | May 2002 | B2 |
6546574 | Bader | Apr 2003 | B1 |