Patent Grant
D310012
| Number | Name | Date | Kind |
|---|---|---|---|
| D274952 | Gringer | Jul 1984 | |
| D274953 | Gringer | Jul 1984 | |
| D282881 | Gringer | Apr 1987 | |
| 1544368 | Brennan | Jun 1925 | |
| 1966633 | Lee | Jul 1934 | |
| 2201645 | Epner | May 1940 | |
| 2334039 | Rueb | Nov 1943 | |
| 2437827 | Lund | Mar 1948 | |
| 2454668 | Nissenbaum | Nov 1948 | |
| 2663979 | Sierchio | Dec 1953 | |
| 2711059 | Ames | Jun 1955 | |
| 2811349 | Bondurant et al. | Oct 1957 | |
| 2848850 | Metoff | Aug 1958 | |
| 2954649 | Carroll et al. | Oct 1960 | |
| 2957282 | Swanson | Oct 1960 | |
| 3123946 | Hoveland | Mar 1964 | |
| 3224149 | Harrington et al. | Dec 1965 | |
| 3362037 | Griffin | Jan 1968 | |
| 3483662 | Ames | Dec 1969 | |
| 3498009 | Taafe, Jr. | Mar 1970 | |
| 3520059 | Gringer | Jul 1970 | |
| 3850533 | Thielen | Nov 1974 | |
| 3887973 | Coon | Jun 1975 | |
| 3906625 | Gringer | Sep 1975 | |
| 3991431 | Thielen | Nov 1976 | |
| 4005525 | Gringer | Feb 1977 | |
| 4221084 | Frantzen | Sep 1980 | |
| 4225998 | Thielen | Oct 1980 | |
| 4399580 | Stark | Aug 1983 | |
| 4475262 | Downer | Oct 1984 | |
| 4516360 | Gringer et al. | May 1985 | |
| 4516361 | Gringer | May 1985 | |
| 4658461 | Roe et al. | Apr 1987 |
| Number | Date | Country |
|---|---|---|
| 2257393 | Jan 1974 | FRX |
| 449803 | Jan 1950 | ITX |
| 53919 | Aug 1911 | CHX |
| 84039 | Apr 1919 | CHX |
| 318756 | Mar 1957 | CHX |
| Entry |
|---|
| Photograph of three hand sanders currently on the market. |
| Sander made by Allway Company. |
| Photograph of pole sanders currently on the market. |
| Photograph showing sanding blocks currently on the market. |
| Photograph of handles made with thin wall construction. |
