A New or Improved Vacuum Tube or Tubes for the Production of Violet or Ultra Violet Rays, X-Rays, or other Rays or Combination of Rays on High or Low Tension Currents.

摘要

25,412. Bowie, J. C., and Phelps, J. H. Dec. 7. Drawings to Specification. R÷ntgen-ray and like apparatus. - Apparatus similar to that described in Specification No. 21,804, A.D. 1905, is used with high or low tension alternating currents Specification No. 6477, A.D. 1903, [Abridgment Class Medicine &c.], is referred to.