Zimdars
From Graces Guide
of Gray's-inn-road, London
1882 Exhibited a novel combination of speaking tube with pneumatic bells for use on ships
See Also
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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 167,711 pages of information and 247,105 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.