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GB9317479D0
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Expanded metal heating elements
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Implant welding of plastics materials
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Laboratory heating mantle
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Method & apparatus for effecting recovery of heat shrinkable sleeves
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Electrical resistance heating apparatus
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Electrical heating tapes
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Shaped fibrous bodies
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Flexible heating tapes
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Electrical heating tapes
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Current monitoring circuits
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ZA7600704B
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Electrical heater device
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Electrical heater device
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Electric heating mantles
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Electric surface heaters
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Improvements in or relating to electrical heating tapes
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FR1471591A
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Improvements to cables or elements in metal sheath with mineral insulation and junction process
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Improvements in or relating to Electrical Heating Devices
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Improvements in or relating to Electrical Heating Devices
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Improvements in or relating to metal sheathed mineral insulated cables or elements
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US3265848A
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Flameproof thermostat assemblies
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