Patent Grant
D286976
| Number | Name | Date | Kind |
|---|---|---|---|
| D174150 | Weller et al. | Mar 1955 | |
| D272720 | Skjaeveland | Feb 1984 | |
| 885001 | Cameron | Apr 1908 | |
| 1230441 | Stevens | Jun 1917 | |
| 1536361 | Tomes | May 1925 | |
| 2722440 | Barton | Nov 1955 | |
| 2765139 | White | Oct 1956 | |
| 3486726 | Kindorf et al. | Dec 1969 | |
| 3556452 | Ramsey | Jan 1971 | |
| 3589659 | Larkin | Jun 1971 | |
| 3743228 | Drab | Jul 1973 | |
| 3869804 | Friend | Mar 1975 | |
| 3936023 | Clifton | Feb 1976 | |
| 4329784 | Bjork | May 1982 | |
| 4397437 | Madej | Aug 1983 |
| Number | Date | Country |
|---|---|---|
| 0144779 | Jan 1952 | AUX |
| 2220648 | Oct 1974 | FRX |
| 0093784 | Dec 1938 | SEX |
