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DE747231C
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Process for the production of boron-free enamels, in particular basic enamels
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DE709334C
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Glass that can be stained red by copper or copper compounds
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DE716099C
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Process for producing yellow glasses
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DE724063C
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Process for dyeing hollow glass threads or fibers
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DE746078C
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Device for the continuous production of glass fibers
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DE688787C
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Process for the production of enamels, glazes or glass fluids that have been turned white with titanium dioxide
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DE702057C
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Black enamels and glazes
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DE741088C
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Method and device for the continuous production of glass fibers
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DE684081C
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Electrically heated mouthpiece on oven to produce threads or fibers from glass etc.
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DE683867C
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Method for producing curled glass threads
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DE727779C
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Glass for making fibers or threads
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