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2. Model 500 telephone - Wikipedia

   en.wikipedia.org/wiki/Model_500_telephone

   The Western Electric 500-type telephone replaced the 300-type, which had been produced since 1936. The model 500 line was designed by the firm of industrial designer Henry Dreyfuss, the product of several years of research and testing in collaboration with Bell Laboratories and Western Electric. Development started in 1946 with early sketches ...

3. No. 4 Electronic Switching System - Wikipedia

   en.wikipedia.org/wiki/No._4_Electronic_Switching...

   The No. 4 Electronic Switching System (4ESS) is a class 4 telephone electronic switching system that was the first digital electronic toll switch introduced by Western Electric for long-distance switching. It was introduced in Chicago in January 1976, to replace the 4A crossbar switch. [1]

4. Reading Works - Wikipedia

   en.wikipedia.org/wiki/Reading_Works

   Western Electric's Reading Works in Berks County, Pennsylvania was a manufacturer of integrated circuit and optoelectronic equipment for communication and computing. The work force grew to nearly 5,000 by 1985 making the Reading, Pennsylvania, facility one of Berks County's largest industrial employers.

5. Centurion (bicycle company) - Wikipedia

   en.wikipedia.org/wiki/Centurion_(bicycle_company)

   Early bike sales were limited to the West Coast, with the brand receiving wider exposure by the late 1970s. WSI stopped using the Centurion brand name in 1990, [4] consolidating their road and touring bikes under the Diamond Back (later DiamondBack) brand. While the brand Centurion had become well known, under the new brand name the company's ...

6. Whizzer (motorcycles) - Wikipedia

   en.wikipedia.org/wiki/Whizzer_(motorcycles)

   Whizzer bicycle engines are a line of bicycle engines that were produced in the United States from 1939 to 1965. They were commonly sold as kits to be assembled and attached to a consumer's bicycle thus creating a motorized bicycle. Whizzer U.S.A. re-appeared in 1997 to sell an improved version, pre-assembled on an old Schwinn-style bicycle frame.

7. Bicycle drivetrain systems - Wikipedia

   en.wikipedia.org/wiki/Bicycle_drivetrain_systems

   Bicycle drivetrain systems are used to transmit power on bicycles, tricycles, quadracycles, unicycles, or other human-powered vehicles from the riders to the drive wheels. Most also include some type of a mechanism to convert speed and torque via gear ratios .