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US3289029A
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Servo feed apparatus for electrical discharge machining
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Air bleed system for hydraulic piston
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Electrical discharge maching apparatus
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Electrical discharge machining power supply
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Electrical discharge machining power circuit
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Per pulse cutoff electrical discharge machining apparatus
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Electrolytic machining apparatus
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Servo feed apparatus for electrical discharge machining
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Electrical discharge machining power circuit
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Current pulsing circuit
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Servo system
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Current sensitive per-pulse cut-off circuit
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Leading edge delay per pulse cut-off circuitry for electrical discharge machining apparatus
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Peak drive protective circuit
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Fault detection and cut-off circuit for electrical discharge machining apparatus
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Improvements in and relating to electrical-discharge machining
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Improvements in or relating to electrical-discharge-machining
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Fail safe power feed system
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Transistorized electric discharge machining circuit
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Impedance matching circuit for spark machining
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