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
GB131842A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Priority to GB131842ApriorityCriticalpatent/GB555150A/en
Publication of GB555150ApublicationCriticalpatent/GB555150A/en
H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
Landscapes
Ignition Installations For Internal Combustion Engines
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Illuminated Signs And Luminous Advertising
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Abstract
555,150. Inductances. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Jan. 30, 1942, No. 1318. Drawings to Specification. [Class 38 (ii)] The subject-matter of this Specification is identical with that described in Specification 605,353.
GB131842A1942-01-301942-01-30Improvements in or relating to tuning devices for superheterodyne receivers
ExpiredGB555150A
(en)