The broken lines in the drawings depict unclaimed environmental subject matter.
The broken lines in the drawings depict unclaimed environmental subject matter.
| Number | Date | Country | Kind |
|---|---|---|---|
| 40 2011 002 844 | May 2011 | DE | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| D208431 | Paulson, Jr. | Aug 1967 | S |
| D523037 | Kaser et al. | Jun 2006 | S |
| D649174 | Schindler | Nov 2011 | S |
| D649567 | Schindler | Nov 2011 | S |