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Emil Theodor Lammine
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Physical Or Chemical Processes And Apparatus
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Devices And Processes Conducted In The Presence Of Fluids And Solid Particles
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Abstract
21,188. Lammine, E. T. Oct. 7. Annealing. - Welded wrought-iron annealing- pots of the kind described in Specification No. 8171, A.D. 1908, are made with fluted walls and cover, the fluting of the walls running either horizontally, Fig. 1, or vertically, Fig. 5. The cover is formed with concentric corrugations, Fig. 4. The corrugations may be of various forms.
GB190821188D1908-10-071908-10-07Improvements in Welded Wrought Iron Annealing Pots.
ExpiredGB190821188A
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