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- 19:11, 7 January 2025 Intcreator talk contribs created page Western Electric 355 A (Created page with "The '''Western Electric 355 A''' is a Strowger step-by-step telephone switch. It uses the same principles as the original device patented by Almon Strowger in 1891, where electric pulses are used to step selectors up a number of times to make a telephone connection. The 355 A features improvements over Strowger's original design such as compact line finders and trunk equipment for connecting to other switch...") Tag: Visual edit