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 |
|---|---|---|---|
| 4010604 | Mar 2009 | GB | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 479279 | Husemann | Jul 1892 | A |
| 680176 | Robertson | Aug 1901 | A |
| 2734537 | Geisler | Feb 1956 | A |
| D184798 | Brandt | Apr 1959 | S |
| 3773174 | Stimpel | Nov 1973 | A |
| D258213 | Lydford | Feb 1981 | S |
| 4320987 | Rowe et al. | Mar 1982 | A |
| 4339043 | Tice et al. | Jul 1982 | A |
| D360888 | Timm | Aug 1995 | S |
| 5492432 | Eben et al. | Feb 1996 | A |
| 5988939 | Allen et al. | Nov 1999 | A |
| 6234713 | Rowe et al. | May 2001 | B1 |
| 20100193406 | Alderson et al. | Aug 2010 | A1 |