When it came to cement and concrete, Edison was looking at the larger picture. What he wanted was to create a cost-effective method to build working class homes; his innovative idea was to build a house in a single pour of concrete. Edison patented his system to mass-produce concrete houses in 1917.
This idea was not a great success, mostly because it was difficult to produce the reusable metal moulds which were required to make those houses. However, Edison was able to build some of these homes in New Jersey.
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