Patent classifications
C
CHEMISTRY; METALLURGY
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C03
GLASS; MINERAL OR SLAG WOOL
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C03B
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
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2205/00
Fibre drawing or extruding details
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C03B2205/60
Optical fibre draw furnaces
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C03B2205/62
Heating means for drawing
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C03B2205/67
Laser heating
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