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In the South African mining industry, underground rescue teams in the 20th century were known as Proto teams. Presumably after this equipment. This is from memory - I don't have a reliable reference. · · · Peter Southwood (talk): 13:49, 10 March 2021 (UTC)
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In the South African mining industry, underground rescue teams in the 20th century were known as Proto teams. Presumably after this equipment. This is from memory - I don't have a reliable reference. · · · Peter Southwood (talk): 13:49, 10 March 2021 (UTC)