No occupation
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Chemists
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Physicists
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Physical scientists nec
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Physical science assistants and technicians
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Professional engineers, specialisation unknown
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Architects
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Civil engineers
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Electrical engineers
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Mechanical engineers, general or nfs
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Industrial machinery or tools engineers
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Mechanical engineer (motors and engines, except marine)
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Marine engineers
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Ship construction engineers
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Heating, ventilation and refrigeration engineers
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Other mechanical engineers
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