The broken lines in the drawings show unclaimed environmental structure only and form no part of the claimed design.
The broken lines in the drawings show unclaimed environmental structure only and form no part of the claimed design.
| Number | Name | Date | Kind |
|---|---|---|---|
| 1970409 | Wiedemann | Aug 1934 | A |
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| 7155998 | Shyu | Jan 2007 | B1 |
| D689751 | Kalinowski | Sep 2013 | S |