| Patents for John Oster Mfg. Co. | 
| Patents 1 - 
					13
					of 13 
       | 
| Number | Date | Patentee | Title | Type | 
| 1,803,345 | May 05, 1931 | J. Oster | Hand clipper | hair clippers | 
| 1,888,688 | Nov. 22, 1932 | J. Oster | Unitary cutting assembly for hair clippers | hair grooming tools | 
| 1,927,184 | Sep. 19, 1933 | S.J. Poplawski | Mixing Cup | mixers | 
| 2,211,216 | Aug. 13, 1940 | J. Oster | Small power driven tool | handheld power tools | 
| D177,767 | May 22, 1956 | G.C. Seeger | Portable electric saw | handheld circular saws | 
| 2,765,009 | Oct. 02, 1956 | O.D. Doerner | Lathe and drill press assembly | wood lathes | 
| 2,768,663 | Oct. 30, 1956 | P.C. Jones | Lathe and drill press assembly | wood lathes | 
| 2,819,742 | Jan. 14, 1958 | D.L. Blachly | Kerf guide and splitter | handheld power tools | 
| D185,160 | May 12, 1959 | A.W. Madl | Portable electric saw | handheld power jigsaws | 
| 2,885,833 | May 12, 1959 | G.M. Neff | Hand held sanding and abrading machine | handheld power tools | 
| D187,875 | May 10, 1960 | A.W. Madl | Portable electric sander | handheld power tools | 
| 2,949,944 | Aug. 23, 1960 | D.L. Blachly | Portable hand held saw | handheld power tools | 
| 3,074,489 | Jan. 22, 1963 | R.R. Annis | Variable pitch fan for small motors |  |