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Warmer for a sporting element

Stoves and furnaces – Heaters – Chemical
Reexamination Certificate

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Warming device for generating heat by controlled exothermic oxid

Stoves and furnaces – Heaters – Chemical
Patent

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Water heater

Stoves and furnaces – Heaters – Surface
Patent

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Water heating assembly

Stoves and furnaces – Heaters – Surface
Patent

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Water-activated chemical heater with suppressed hydrogen

Stoves and furnaces – Heaters – Chemical
Patent

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Water-borne rotating solar collecting and storage systems

Stoves and furnaces – Heaters – Surface
Patent

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Wide angle solar heat collection system

Stoves and furnaces – Heaters – Surface
Patent

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Wind power conversion and control system

Stoves and furnaces – Heaters – Frictional
Patent

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Wind-powered heat-generating apparatus

Stoves and furnaces – Heaters – Frictional
Patent

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Windmill energy system

Stoves and furnaces – Heaters – Frictional
Patent

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Windmills

Stoves and furnaces – Heaters – Frictional
Patent

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