11th April 1952, Page 58
11th April 1952
Page 58
Page 58, 11th April 1952
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Power Assistance For Hydraulic Brakes
A HYDRAULIC brake in 1 - 1 which the manual effort is amplified by a vacuum servomotor is described in patent No. 666.364, by A. B. Kristenson and Grahs, Stockholm, Sweden. A......