52.
    发明专利
    未知

    公开(公告)号:DK33995C

    公开(公告)日:1924-12-29

    申请号:DK33995D

    申请日:1923-11-14

    Applicant: KITSEE ISIDOR

    Inventor: KITSEE ISIDOR

    56.
    发明专利
    未知

    公开(公告)号:AT67611B

    公开(公告)日:1915-01-25

    申请号:AT67611D

    申请日:1912-06-22

    Applicant: KITSEE ISIDOR

    Inventor: KITSEE ISIDOR

    58.
    发明专利
    未知

    公开(公告)号:DK17839C

    公开(公告)日:1913-09-22

    申请号:DK17839D

    Applicant: KITSEE ISIDOR

    Inventor: KITSEE ISIDOR

    Improvements in Metallic Filaments for Electric Lamps.

    公开(公告)号:GB191011415A

    公开(公告)日:1911-04-27

    申请号:GB191011415D

    申请日:1910-05-09

    Applicant: KITSEE ISIDOR

    Inventor: KITSEE ISIDOR

    Abstract: 11,415. Kitsee, I. May 9. Filaments of metals such as tungsten and tantalum are made from the corresponding phosphides, which are shaped by squirting or moulding and then reduced by electrolysis, for instance in dilute phosphoric acid with platinum anodes; porous filaments or thick rods of high resistance are obtained, which may be consolidated mechanically. The phosphide may be prepared by adding about one gram atom of phosphorus to four gram atoms of metal previously heated to 800-1000‹ F. in a closed crucible, or by heating the two together. Excess of phosphorus remains uncombined if air is excluded.

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