| Patents for Oster Mfg. Co. |
Patents 1 -
15
of 50
      |
| Number | Date | Patentee | Title | Type |
| 490,676 | Jan. 31, 1893 | H.W. Oster | Adjustable die-stock | tap wrenches and die stocks |
| 539,880 | May 28, 1895 | H.W. Oster | Pipe and bolt cutter | pipe cutting machines |
| 552,326 | Dec. 31, 1895 | H.W. Oster | Ratchet die-stock | taps and dies |
| 679,241 | Jul. 23, 1901 | H.W. Oster | Locking mechanism for die-heads | taps and dies |
| 694,412 | Mar. 04, 1902 | H.W. Oster | Thread-cutting machine | pipe threading machines |
| 809,007 | Jan. 02, 1906 | H.W. Oster | Machine for cutting dies for die-stocks | |
| 812,870 | Feb. 20, 1906 | H.W. Oster | Die-stock | taps and dies |
| 818,114 | Apr. 17, 1906 | H.W. Oster | Gearing for thread-cutting machines | |
| 827,656 | Jul. 31, 1906 | H.W. Oster | Die-stock | taps and dies |
| 832,076 | Oct. 02, 1906 | H.W. Oster | Die-cutter | tool making |
| 902,599 | Nov. 03, 1908 | H.W. Oster | Die-stock | taps and dies |
| 925,220 | Jun. 15, 1909 | H.W. Oster | Geared Die Stock | tap and die holders |
| 948,793 | Feb. 08, 1910 | H.W. Oster | Nipple-threading mechanism | pipe threading machines |
| 965,320 | Jul. 26, 1910 | H.W. Oster | Die-stock | taps and dies |
| 965,402 | Jul. 26, 1910 | H.W. Oster | Threading-machine | pipe threading machines |
