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  • [发明专利]GB19250015413 _ SIEMENS & HALSKE AKTIENGESELLSCHAFT 1925年06月13日
    250,890. Siemens & Halske Akt.-Ges. April 18, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 243,670. Elements, converting into other elements.-A modification of the process described in the parent Specification for ...
  • [发明专利]GB19250002260 _ HAROLD SWAN SAWFORD 1925年01月26日
    228,533. Sawford, H. S. Jan. 26, 1924, [Convention date]. R÷ntgen-ray apparatus. - A screen for intercepting secondary radiations comprises a number of spirally-wound composite ribbons comprising a layer of material impervious to X-rays and a layer of...
  • [发明专利]GB19250002818 _ KODAK LIMITED 1925年01月31日
    228,568. Kodak, Ltd., (Assignees of Sheppard, S. E., and Eberlin. L. W.) Feb. 1, 1924, [Convention date]. Fluorescent screens. - In a screen comprising an active layer containing a fluorescent salt, a rear supporting layer, and a front protecting laye...
  • [发明专利]GB19250011896 _ SIEMENS & HALSKE AKTIENGESELLSCHAFT 1925年05月07日
    It is stated that gold or other precious metal is obtained by subjecting mercury to electric treatment. An arc may be formed between mercury poles, gold being produced in the mercury; the mercury vaporized may be condensed.
  • [发明专利]GB19250007078 _ ERNEST RICHARD GORDON GREVILLE FRANK WILLIAM READ 1925年03月16日
    238,148. Greville, E. R. G., and Read, F. W. March 16, 1925. R÷ntgen-ray apparatus.-A vertically-adjustable occulting panel has a circular aperture over which is rotatably mounted a fluorescent screen-carrier formed of occulting material and so constr...
  • [发明专利]GB19250015407 _ SIEMENS & HALSKE AKTIENGESELLSCHAFT 1925年06月13日
    248,314. Siemens & Halske Akt.-Ges. Feb. 24, 1925, [Convention date]. Addition to 243,670. Void [Published under Sect. 91 of the Acts]. Elements, converting into other elements.- The process described in the parent Specification and in Specification 2...
  • 7.
    [发明专利]GB19250015280 _ SIEMENS & HALSKE AKTIENGESELLSCHAFT 1925年06月12日
    243,670. Siemens & Halske Akt.-Ges. Nov. 28, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Elements, converting into other elements.-In order to convert mercury into another element, particularly gold, the mercury is subjected t...
  • [发明专利]GB19250016781 _ N. V. PHILIPS' GLOEILAMPENFABRIEKEN 1925年06月30日
    243,310. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Nov.. 20, 1924, [Convention date]. Addition to 208,108. R÷ntgen-ray tubes.-In incandescent cathode R÷ntgen-ray tubes as described in the parent Specification, the aperture for the passage ...
  • [发明专利]GB19250015402 _ SIEMENS & HALSKE AKTIENGESELLSCHAFT 1925年06月13日
    247,508. Siemens & Halske Akt.-Ges. Feb. 14, 1925, [Convention date]. Addition to 243,670. Void [Published under Sect. 91 of the Acts]. Elements, converting into other elements.- The process described in the parent Specification for converting mercury...
  • [发明专利]GB19250017733 _ RUDOLF MANNL 1925年07月10日
    236,951. Mannl, R. July 11, 1924, [Convention date]. R÷ntgen-ray apparatus. - In a screen for intercepting secondary radiations, the height of the radial plates 1, Fig. 4, decreases towards the centre. The density of the plates may also decrease towar...
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