Directional beacon Western Ave., Los Angeles County, Calif.,1939
收藏Mendeley Data2024-05-16 更新2024-06-27 收录
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资源简介：
3 photographs of 5 radio antennas used as beacons, with a ground plane and a small building, Los Angeles County, California, 1939 April.
创建时间：
2024-05-12
