(12) Abstract to Unites State Patent | |
(14) Дата публикации: 1938-01-18 (21) Регистрационный номер заявки: 19360057306 (22) Дата подачи заявки: 1936-01-02 |
(71) Имя заявителя: Derby George T. (US) (72) Имя изобретателя: Derby George T. (US) (73) Имя патентовладельца: Derby George T. (US) |
(54) Traffic signal device (57) Generically this invention relates to signalling devices, but it more especially is directed to traffic signals of the type mounted in a pavement surface, and directly in the path of traffic, and wherein the signal is normally disposed above the pavement level and movable under pressure to said level. |