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JPS5397698A
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Electrospark working method
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DE2700861A1
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Electrical discharge erosion method - uses roughing and finish electrodes mounted on support for sequential operation
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Spark erosion using graphite and metal electrode - where graphite is used for rough machining, and metal for final machining
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NL7700157A
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Electrical discharge erosion method - uses roughing and finish electrodes mounted on support for sequential operation
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DE2600977A1
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Milling machine with pivotal head - has two part head mounting frame with arcuate adjusting slots and bores with bushings for locating pins
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Milling machines with pivotal head
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Methods and equipment for machining electrodes
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Methods for finishing an aperture
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Method of finishing an aperture
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