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DE728340C
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Process for the production of cinder blocks
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DE738149C
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Hinge-free tongue tip lock for switches
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DE735335C
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Mold
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DE735211C
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Discharge slide on the jogger
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DE731482C
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Repair of cracks and broken areas on hard rubber boxes for collector batteries
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DE725461C
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Method and device for the production of foamed slag
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DE725674C
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Mold with a pipe screw for cooling the wall by means of compressed air during casting
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DE746695C
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Heat treatment to increase the ductility of white cast iron
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DE718350C
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Corrugated steel
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DE715250C
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Process for the production of masonry and shaped bricks from blast furnace slag
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DE721905C
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Process to achieve the most uniform quenching effect possible in the edge and core when quenching steals of thicker cross-section
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