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1LlyfrCyhoeddwyd 1964“...American Society of Tool and Manufacturing Engineers...”
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2CylchgrawnCyhoeddwyd 1960“...American Society of Tool and Manufacturing Engineers...”
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3Llyfr
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4LlyfrCyhoeddwyd 1958“...American Society of Tool and Manufacturing Engineers...”
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5LlyfrCyhoeddwyd 1965“...American Society of Tool and Manufacturing Engineers...”
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6LlyfrCyhoeddwyd 1967“...American Society of Tool and Manufacturing Engineers...”
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7LlyfrCyhoeddwyd 1962“...American Society of Tool and Manufacturing Engineers...”
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8LlyfrCyhoeddwyd 1963“...American Society of Tool and Manufacturing Engineers...”
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9LlyfrCyhoeddwyd 1962“...American Society of Tool and Manufacturing Engineers...”
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10CylchgrawnCyhoeddwyd 1960“...American Society of Tool and Manufacturing Engineers...”
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11LlyfrCyhoeddwyd 1963“...American Society of Tool and Manufacturing Engineers...”
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12LlyfrCyhoeddwyd 1966“...American Society of Tool and Manufacturing Engineers. Melbourne Chapter. Seminar...”