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Why miners' portable electric lamps require safety devices
Are flame safety lamps suitable for detecting petroleum vapors?
The improved permissible flame safety lamps
Behavior of flame safety lamps in mine atmospheres deficient in oxygen
Fuel for permissible flame safety lamps
Investigation of electrical equipment, safety lamps, and gas detectors for safety
Use and misuse of flame safety lamps
Fuel for permissible flame safety lamps :(a revision of RI 3389)