To our surprise, this inventor is not a professional electrical researcher, but a businessman who specializes in funeral. He found that the telephone operator, whether intentionally or unintentionally, often connected his business phone to his competitors, thus losing a lot of his business. To this end, he vowed to invent an automatic wiring device that does not require operator wiring.
During the period of 1889 ~ 189 1 year, he devoted himself to researching a switch that can automatically connect wires, and he succeeded. 189 10 March 10, the invention of "step-by-step automatic switching" was patented. 1892165438+1On October 3rd, the automatic exchange made of connectors invented by Strage was put into use in laporte, Indiana, USA, which was the first automatic telephone exchange in the world.