Grace's Guide To British Industrial History

Registered UK Charity (No. 1154342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 174,011 pages of information and 250,208 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

Walmsley Patent Lamp Co

From Graces Guide

of 180 Gray's Inn Road, London, WC1.

  • 1937 British Industries Fair Advert for Scientific Lighting. Daylight Lamps. Electric Lamps. Electric Lighting Equipment (Industrial). Street Lighting Apparatus (Electric). (Electricity: Industrial and Domestic Section - Stand No Cb.921) [1]
  • 1937 Patent - Improvements in or relating to light diffusing devices for lighting units. [2]
  • 1938 Patent - Light diffusing means for lamps. [3]

See Also

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Sources of Information

  1. 1937 British Industries Fair Advert p585; and p431
  2. [1] Wikipatents
  3. [2] Wikipatents