He had begun to focus on white goods as the consumer boom took hold.
What does the underlined part mean?
e. ordinary members of the public buying lots of consumer goods, such as TVs, washing machines, or whatever. To "take hold" means to become established.
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A "consumer boom" is a period of high consumer spending, i.e. ordinary members of the public buying lots of consumer goods, such as TVs, washing machines, or whatever. To "take hold" means to become established.