GB781990A - Electrical devices using the johnsen-rahbek effect - Google Patents

Electrical devices using the johnsen-rahbek effect

Info

Publication number
GB781990A
GB781990A GB106655A GB106655A GB781990A GB 781990 A GB781990 A GB 781990A GB 106655 A GB106655 A GB 106655A GB 106655 A GB106655 A GB 106655A GB 781990 A GB781990 A GB 781990A
Authority
GB
United Kingdom
Prior art keywords
johnsen
electrical devices
rahbek
rahbek effect
class
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB106655A
Inventor
Ernest Mark Frost
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB106655A priority Critical patent/GB781990A/en
Publication of GB781990A publication Critical patent/GB781990A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

781,990. Devices using the Johnsen-Rahbek effect. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 11, 1956 [Jan. 13, 1955], No. 1066/55. Addition to 748,461, [Group XXXIX]. Class 35. [Also in Group XXXIX] In the Johnsen-Rahbek device described in the parent Specification, the conducting bands engage a cylindrical body coated with aluminium oxide. Specification 144,761, [Class 35], is referred to.
GB106655A 1955-01-13 1955-01-13 Electrical devices using the johnsen-rahbek effect Expired GB781990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB106655A GB781990A (en) 1955-01-13 1955-01-13 Electrical devices using the johnsen-rahbek effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB106655A GB781990A (en) 1955-01-13 1955-01-13 Electrical devices using the johnsen-rahbek effect

Publications (1)

Publication Number Publication Date
GB781990A true GB781990A (en) 1957-08-28

Family

ID=9715589

Family Applications (1)

Application Number Title Priority Date Filing Date
GB106655A Expired GB781990A (en) 1955-01-13 1955-01-13 Electrical devices using the johnsen-rahbek effect

Country Status (1)

Country Link
GB (1) GB781990A (en)

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