Patent Grant
D330157
| Number | Name | Date | Kind |
|---|---|---|---|
| D33409 | Covert | Oct 1900 | |
| D45730 | Sparks | May 1914 | |
| D50177 | Baxter | Jan 1917 | |
| 70884 | Oatley | Nov 1867 | |
| D217954 | Nathanson | Jul 1970 | |
| D224959 | Dauray | Oct 1972 | |
| D234186 | Langstrom, Jr. | Jan 1975 | |
| 331717 | Kessel | Dec 1885 | |
| 1005870 | Packer | Oct 1911 | |
| 1388799 | Christensen | Aug 1921 | |
| 2532255 | Davis | Nov 1950 | |
| 2723816 | Drysdale | Nov 1955 | |
| 2842329 | Friedman et al. | Jul 1958 | |
| 2889936 | Kassner | Jun 1959 | |
| 4068817 | Berger | Jan 1978 | |
| 4073457 | Batts et al. | Feb 1978 | |
| 4155531 | Bagne | May 1979 | |
| 4299342 | Kessler et al. | Nov 1981 | |
| 4500061 | Nigro | Feb 1985 | |
| 4709838 | Campbell | Dec 1987 | |
| 5013004 | Walkens | May 1991 |
