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A. Schrader's Son Inc, of Erdington
and of Walkmill Lane, Bridgtown, Cannock.(1972)
1844 August Schrader established his business in Manhattan
1845 Supplied fittings and valves for Goodyear's rubber products
1849 Made diving helmet
1891 Started making valves for bicycle tyres
1905 Started making gauges for measuring tyre pressure
1914 Company founded in Britain.
Located at Willesden
1933 Moved to Tyburn Road, Birmingham
By 1937 was part of Scovill Manufacturing Co (see advert)
1961 Manufacturers of "Schrader" tyre valves, and a variety of equipment concerned in air control. 800 employees. 
c.1963 Became Schrader Automotive Products Division