| Patents for Hilger & Watts, Ltd. |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 2,480,237 | Aug. 30, 1949 | V.W. Towns, C.J. Godfrey | Optical Device for Accurate Reading of Annular Scales | optical measuring gauges |
| 2,483,897 | Oct. 04, 1949 | C.J. Godfrey | Optical Precision Gauge | optical measuring gauges |
| 2,505,166 | Apr. 25, 1950 | A. Wood | Spirit Level | spirit levels |
| 2,604,229 | Jul. 22, 1952 | E. Schwarz | Closure Seal for Vacuum Vessels | manufacturing processes |
| 2,636,855 | Apr. 28, 1953 | E. Schwarz | Method of Producing Photoconductive Coatings | manufacturing processes |
| 2,639,833 | May 26, 1953 | E. Schwarz | Vacuum Seal | manufacturing processes |
| 2,717,401 | Sep. 13, 1955 | W. Zehden, G.E. Fensom, A.C. Menzies | Device for Cutting Very Fine Screw Threads | screwcutting lathes |
| 2,853,664 | Sep. 23, 1958 | P.L. Jones, D.S. Evans, V.W. Towns | Digital Servosystem for Postioning an Adjustable Member | machine tool controls |
| 2,981,141 | Apr. 25, 1961 | D.W. Berry, J.A. Armstrong | Optical Compensator and Tilt Detector | optical measuring gauges |
