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US3464014A
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Electrical instrument having a rotatable member supported by a catenary suspension system
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US3260942A
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Frequency discriminator
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US3226496A
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Rotary electrical switch with improved spring contact and rotor structure
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US3233953A
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Case for electrical apparatus and the like
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US3293350A
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Arrangement for maintaining short term thermal stability of an electrical current-carrying component
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US3214528A
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Rotary electrical switch with movable spring contact structure
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US3254273A
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Standard magnet
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US3191071A
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Variable frequency/width pulse generator
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US3225266A
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Protective relaying circuit
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US3248645A
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Gaussmeter
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US3201852A
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Method of soldering
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US3157841A
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Variable frequency oscillator amplitude stabilized bridge and self-derived referencevoltage
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US3225348A
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Transmitter having an oscillator controlled by selectively switched capacitors
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US3037078A
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Teleprinter system
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US3140430A
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Standard magnet structure with predetermined air-gap
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US3002053A
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Multiple d.-c. repeater
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US2997534A
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Party line keying circuit
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US3002052A
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Party line keying circuit
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US3070731A
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Magnet charger
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US3014183A
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Telemeter receiver
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