![]() G01S1/00- Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters Receivers co-operating therewith.G01S- RADIO DIRECTION-FINDING RADIO NAVIGATION DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES ANALOGOUS ARRANGEMENTS USING OTHER WAVES.230000001276 controlling effect Effects 0.000 description 2.239000002131 composite material Substances 0.000 description 6.230000005540 biological transmission Effects 0.000 description 42.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 Alford Andrew filed Critical Alford Andrew Priority to US209431A priority Critical patent/US2682050A/en Priority to US368485A priority patent/US2861266A/en Application granted granted Critical Publication of US2682050A publication Critical patent/US2682050A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US209431A Inventor Alford Andrew Original Assignee Alford Andrew Priority date (The priority date is an assumption and is not a legal conclusion. ![]() Google Patents Localizer antenna systemÄownload PDF Info Publication number US2682050A US2682050A US209431A US20943151A US2682050A US 2682050 A US2682050 A US 2682050A US 209431 A US209431 A US 209431A US 20943151 A US20943151 A US 20943151A US 2682050 A US2682050 A US 2682050A Authority US United States Prior art keywords array course main pattern fed Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. ![]() Google Patents US2682050A - Localizer antenna system ![]()
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