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US3737615A
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Current and frequency control system for electrical discharge machining apparatus
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Electrical discharge machining servo control circuit
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Multiple gap electrical discharge machining circuit
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Short circuit protection system for electrical discharge machining apparatus
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Pulse narrowing and cut-off protection system for electrical discharge machining
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Polarity reversal system for electrical discharge machining apparatus
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Protective system for electrical discharge machining power supply circuit
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Electrical discharge machining power supply with protective system for output switch failure
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Electrical discharge machining power supply circuit with phase control for gap short circuit protection
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Electrical discharge machining short circuit protection system of the keyed type
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Servo feed control for electrical discharge machining
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Gap short circuit control system for electrical discharge machining apparatus
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Electrical discharge machining pulse current control apparatus
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Electrical discharge machining power supply circuit of the superimposed voltage type
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Gap short circuit protective system for electrical discharge machining
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Gap open circuit protective system for electrical discharge machining
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GB1224583A
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Electrical machining apparatus
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Electrical discharge machining servo control circuit
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Fail transistor protective circuit for electrical discharge machining apparatus
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Servo control circuit for electrical discharge machining apparatus
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