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Possibly the first successful brick-making machine was patented by Henry Clayton , employed at the Atlas Works in Middlesex , England , in 1855 , and was capable of producing up to 25,000 bricks daily with minimal supervision .
 Henry Clayton, Atlas Works, Middlesex, England
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Henry Clayton, Atlas Works, Middlesex, England