| Number | Name | Date | Kind |
|---|---|---|---|
| 143822 | Graves | Oct 1873 | |
| 265609 | Johnston | Oct 1882 | |
| 503212 | MacLeod | Aug 1893 | |
| 1231553 | Bach et al. | Jul 1917 | |
| 1327397 | Levin | Jan 1920 | |
| 1397260 | Trottier | Nov 1921 | |
| 1794940 | Zimmermann | Mar 1931 | |
| 2067547 | Schneider et al. | Jan 1937 | |
| 2411430 | Hodson | Nov 1946 | |
| 2802590 | Tupper | Aug 1957 | |
| 3772712 | Renn et al. | Nov 1973 | |
| 3881408 | Valor | May 1975 | |
| 4427110 | Shaw, Jr. | Jan 1984 | |
| 4980132 | Stinson et al. | Dec 1990 | |
| 5022553 | Pontius | Jun 1991 | |
| 5033520 | Kuehmichel | Jul 1991 | |
| 5065886 | Sher | Nov 1991 |
| Entry |
|---|
| NSA literature on Refrigerator/Freezer Deodorizer, undated, unpaginated, one page. |