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Pharos Welsbach - Half What? Efficiency?

£3.75

Source : Journal of Gas Lighting and Water Supply
Date : 1914
Size : 7.5 x 12 inches
Notes :
Keywords : half watt lamp, high pressure gas, welsbach light comppany, welsbach-bryan donkin compressor, lamp

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  • Model: welsbach-001
  • 1 Units in Stock


This product was added to our catalog on Thursday 01 January, 1970.

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