| All Patents in class 470/176 |
Patents 16 -
30
of 33
      |
| Number | Date | Patentee | Title | Type |
| 1,017,889 | Feb. 20, 1912 | A.B. Landis | Thread-cutting machine | metal threading machines |
| 1,084,118 | Jan. 13, 1914 | W.W. Vosper | Pipe Threading and Cutting Apparatus. | pipe threading machines |
| 1,548,576 | Aug. 04, 1925 | P.R. Bachtel | Instantaneous Mechanical Lead Screw Release Mechanism | metalworking machine mechanisms |
| 1,576,652 | Mar. 16, 1926 | L.S. Hall | Pipe Threading Machine | pipe threading machines |
| 1,635,447 | Jul. 12, 1927 | W.W. Vosper | Cutting-Tool Mounting and Controller | pipe threading machines |
| 1,746,266 | Feb. 11, 1930 | D.C. Klausmeyer | Spindle Feeding Means | metalworking machine mechanisms |
| 2,286,715 | Jun. 16, 1942 | F.E. Cheever | Thread Chasing Attachment for Lathes | turret lathes |
| 2,317,060 | Apr. 20, 1943 | W.G. Hoelscher | Safety Device for Radial Drill Arm Elevating Screws | metalworking machine mechanisms |
| 2,376,164 | May 15, 1945 | J.M. Ingalls, C.E. Miller | Precision Threading Attachment | automatic lathes |
| 2,576,114 | Nov. 27, 1951 | H.M. Junkin, Executor, R.L. Hibbard, Executor, Jr., S.C. Hibbard, Executor, R.L. Hibbard, deceased (Estate of) | Machine Tool Work Holder | workpiece changers and storage mechanisms |
| 2,717,401 | Sep. 13, 1955 | W. Zehden, G.E. Fensom, A.C. Menzies | Device for Cutting Very Fine Screw Threads | screwcutting lathes |
| 2,770,821 | Nov. 20, 1956 | W.J. Adlaf | Lead Screw Tapping Attachment Having Torque Responsive Feed Nut | tapping heads and chucks |
| 2,916,931 | Dec. 15, 1959 | F.W. Cunningham | Motor Control System for Automatic Machine Tools | numerically controlled lathes |
| 2,940,093 | Jun. 14, 1960 | R.B. Pealer | Drive Release for Geared Threader | pipe threading machines |
| 3,052,900 | Sep. 11, 1962 | H.H. van der Velden | Thread Length Control Device for Pipe Threaders | pipe threading machines |
