8th August 1947, Page 50
8th August 1947
Page 50

Page 50, 8th August 1947
Close
Two-speed Hydraulic Brake Cylinder
T H E design of an hydraulic brake with two effective operating rates forms the subject of patent No. 587,099 by H. Page, Alhambra, California, U.S.A. The aim is to provide a......