Usage History of 'isobutylenes'

The following chart shows how frequently 'isobutylenes' appeared in printed materials over time. For example, the word 'isobutylenes' occurred 8 times in books in 1919 and 15 times in 2007. From 1919 to 2007, the word 'isobutylenes' was used a total of 410 times in books scanned by Google. See Reference: Google Ngram project.

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