
4 0 c m
29cm
actual image size: 21cm x 32cm
Description
Almon Brown Strowger (1839-1902) was a teacher and soldier who developed the first succesful automatic telephone-switching system. Strowger then established the Strowger Automatic Exchange Company in 1891, the first exchange being installed the following year. The company became part of General Telephones and Electronics.
Image Details
Image Ref.
10302621
© Science Museum / Science & Society Picture Library