Photo No. 24. Back view, showing Oxygen Cylinders, Purifying Chamber, etc
Submarine Appliances And Their Uses - 1911
Photo No. 24. Back view, showing Oxygen Cylinders, Purifying Chamber, etc
Submarine Appliances And Their Uses - 1911
OXYGEN BREATHING APPARATUS. (Fleuss, Davis and Hill's Patents.)
Submarine Appliances And Their Uses - 1911
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