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Are flame safety lamps suitable for detecting petroleum vapors?

Factors that decrease the light of electric cap lamps

Published Year

• 1920-1929 (1)
• 1930-1939 (1)

Subject

• Electric lamps (1)
• Safety lamps (1)

Author

• Hooker, A. B. (2)
• Zellers, D. H. (2) *
• Yant, W. P. (1) *

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