The broken line shown is included for the purpose of illustration and forms no part of the claimed design.
The broken line shown is included for the purpose of illustration and forms no part of the claimed design.
Number | Name | Date | Kind |
---|---|---|---|
3814148 | Wostl | Jun 1974 | A |
4422485 | O'Shea et al. | Dec 1983 | A |
6886606 | Few et al. | May 2005 | B2 |
7004206 | Viken et al. | Feb 2006 | B2 |
7293587 | Broberg | Nov 2007 | B1 |
8002247 | Birtcher et al. | Aug 2011 | B2 |