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 |