National Gas and Oil Engine Company Limited 1932 - 1966

1890 - The National Gas Engine Company founded by Henry M. Bickerton at Wellington Works, Ashton-under-Lyne, Lancashire. manufacturing engines to run on town gas.

1932 - became the National Gas and Oil Engine Company;

c1961-66 - amalgamated with Mirrlees, Bickerton & Day to form Mirrlees National Ltd.

1977 - became Mirrlees-Blackstone, part of Hawker Siddeley