SAFETY IN MINES.
FIRE-DAMP DETECTOR. Bj Telegraph—Press Association—Copyright. Atjstraliau and N.Z. Cable Association. (Received April 21, 1.35 p.m.) LONDON, April 20. iho Homo Office is testing a device for an attachment to miners* electric hand lamps which registers the amount of fire-damp present, and sounds a bell immediately the amount is dangerous. It. is claimed that the device will reu- 1 der a coal mine explosion impossible. *
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https://paperspast.natlib.govt.nz/newspapers/TS19220421.2.81
Bibliographic details
Star (Christchurch), Issue 16714, 21 April 1922, Page 8
Word Count
67SAFETY IN MINES. Star (Christchurch), Issue 16714, 21 April 1922, Page 8
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