Sigma Instrument Co: Difference between revisions
From Graces Guide
New page: of spring Road, Letchworth, Hertfordshire. Telephone: Letchworth 446. Telegraphic Address: "Sigma, Letchworth". * 1937 Listed Exhibitor. Gas Calorimeters. Gas and Air Flow Meters. S... |
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of | of Spring Road, Letchworth, Hertfordshire. Telephone: Letchworth 446. Telegraphic Address: "Sigma, Letchworth". (1937) | ||
of Letchworth, Hertfordshire. Telephone: Letchworth 1045. Cables: "Sigma, Letchworth". (1947) | |||
* 1937 Listed Exhibitor. Gas Calorimeters. Gas and Air Flow Meters. Steam Flow Meters. Pressure Recorders. Automatic Gas Mixing. Relay Operated Exhauster Regulators and Retort House Governors. CO2 Recorders. Distant Recorders and Distant Indicators. (Stand Nos. Ca. 813 and Ca.712) | * 1937 Listed Exhibitor. Gas Calorimeters. Gas and Air Flow Meters. Steam Flow Meters. Pressure Recorders. Automatic Gas Mixing. Relay Operated Exhauster Regulators and Retort House Governors. CO2 Recorders. Distant Recorders and Distant Indicators. (Stand Nos. Ca. 813 and Ca.712) | ||
* 1947 Listed Exhibitor. Manufacturers of Fine Measuring Instruments including Mechanical, Electrical, Optical and Pneumatic Comparators; Automatic Inspection Equipment. Gas Testing Equipment including Recording and Indicating Calorimeters, Specific Gravity and Pressure Recorders, etc. Automatic Control Equipment. (Olympia, Ground Floor, Stand No. A.1074) | |||
== Sources of Information == | == Sources of Information == | ||
* [[1937 British Industries Fair]] Page 413 | * [[1937 British Industries Fair]] Page 413 | ||
* [[1947 British Industries Fair]] Page 250 | |||
Revision as of 10:35, 22 February 2008
of Spring Road, Letchworth, Hertfordshire. Telephone: Letchworth 446. Telegraphic Address: "Sigma, Letchworth". (1937)
of Letchworth, Hertfordshire. Telephone: Letchworth 1045. Cables: "Sigma, Letchworth". (1947)
- 1937 Listed Exhibitor. Gas Calorimeters. Gas and Air Flow Meters. Steam Flow Meters. Pressure Recorders. Automatic Gas Mixing. Relay Operated Exhauster Regulators and Retort House Governors. CO2 Recorders. Distant Recorders and Distant Indicators. (Stand Nos. Ca. 813 and Ca.712)
- 1947 Listed Exhibitor. Manufacturers of Fine Measuring Instruments including Mechanical, Electrical, Optical and Pneumatic Comparators; Automatic Inspection Equipment. Gas Testing Equipment including Recording and Indicating Calorimeters, Specific Gravity and Pressure Recorders, etc. Automatic Control Equipment. (Olympia, Ground Floor, Stand No. A.1074)
Sources of Information
- 1937 British Industries Fair Page 413
- 1947 British Industries Fair Page 250