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US2618248A
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Selfcooling rotor blades
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Method of making heat sensors
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Method of pretreating metallic hydrides
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Electrical relays
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Method of making a heat sensor
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Heat detection device with test system
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Heat detection device with test system
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Apparatus for heat detection
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Prevention of false warning
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Pressure responsive switch
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Method and apparatus for power transmission and actuation
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Apparatus for heat detection
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Heat detection
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Method and apparatus for transferring heat
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Fire detector installation and support bracket therefor
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