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Progress in Oil-Tank Ship Constraction “BRACKETLESS—SYSTEM’” (PATENTED) re ghctiee ey at peg a ened ee haces Leakage. Greatly simplifies construction. Greatly reduces cost of upkeep and cost of damage repairs. reatly reduces cost of cleaning tanks. Substantially increases the longi*udi strength beyond the well-tried ‘‘Isherwood System.” : ea i Ess Ra : f) | | SSSA SOS Oo errr eons oe a I ] S— Li | a SKY IY ME | fs ff f} Ly [=A YU E_| A a AR REE Ress ne RE BEE FP rk TH ATE | | 5 ‘ 3 2 Sir Joseph W. Isherwood, Bt. Parr eres Gas Free Tanks Will Never Explode 7) WHEELER SYSTEM Quickest, Safest, Cleanest, Cheapest OIL TANK CLEANING e Salvage Process Corporation get ee sd ae re ee Above are two Salvage Process Corp. Barges eas - Phone—Henry 1942 cleaning tanks on S. S. President Roosevelt MARINE REVIEW—July, 1927 71