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GB826411A
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Improvements in or relating to mine arch supports
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GB770714A
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Improvements in or relating to steel
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GB759114A
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Improvements in the manufacture of plated sheet and strip metal
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DE1054401B
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Compression-resilient bracing of the overlapping channel profile segments from such existing pit support frames
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GB754384A
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Improvements in or relating to methods of testing in metallurgical processes
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DE970281C
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Joint for the iron arch or polygon expansion
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DE1029775B
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Compression-compliant clamping connection for the segments of pit support frames from channel profiles
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DE935004C
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Clamp for flexible connection of support segments, especially in pit support
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DE935003C
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Device for pressure-resilient bracing of the profile segments of pit support frames
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GB728636A
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Process for producing steel bar provided with transverse ribs for concrete reinforcement
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DE940616C
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Method for the quantitative determination of changes in the concentration of elements in steel and iron baths, the analysis of which is known
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DE955402C
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Tensile connection of pit support frames with one another
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DE969010C
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Rigid joint connection for pit fittings
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DE968464C
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Rigid joint, especially the roof joint for steel arches or polygons
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DE924623C
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Articulated steel line expansion for difficult conditions
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DE927681C
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Clamp for flexible connection of support segments, especially in pit support
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GB745047A
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Improvements in the preliminary refining of pig iron
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DE931164C
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Rigid joint for connecting extension struts to one another
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