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Expired
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John Meiggs Ewen
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Individual
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Individual
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Publication of GB189728697ApublicationCriticalpatent/GB189728697A/en
Vessels And Coating Films For Discharge Lamps
(AREA)
Forms Removed On Construction Sites Or Auxiliary Members Thereof
(AREA)
Abstract
28,697. Ewen, J. M. Dec. 4. Tiles.-Lenticular, corrugated, ribbed, or curved transparent plates or tiles for windows, vault lights, or the like are formed with parallel prisms B on one side to project the light in the required direction.
GB189728697D1897-12-041897-12-04Prism Lights or Plates for Windows, Vaults and the like.
ExpiredGB189728697A
(en)