- Back
-
Title: Papers re: Patent Application No. 27940 - Improved Indicator of Consumption of Gas and Electricity [Go to resource]
Description: Correspondence with Barker, Brettell & Duncan, Chartered Patent Agents, Birmingham re: Cannon's application for a patent for an improved indicator of the consumption of gas and electricity. License: http://creativecommons.org/licenses/by/2.0/uk/ Publisher: Dudley Archives Rights holder: Dudley Archives Temporal: Oct 1939-Jun 1940 Source: Black Country History Identifier: http://www.blackcountryhistory.org/colle... Go to resource More Like this...
[Edit] - Back