Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 138,146 pages of information and 223,038 images on early companies, their products and the people who designed and built them.

The Engineer 1920/05/14

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Pdf50.jpg 1920 May 14th PDF

  • Contents, p 505.

Main Subjects

  • British Patent Specifications, p 517.
  • Organisation of Payment by Results, p 509 - p 510.


See Also

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Sources of Information