Google Books Ngram Viewer

Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  
Search in Google Books:

1900 - 1946 1947 - 1971 1972 - 1974 1975 - 1995 1996 - 2008 дефектоскоп Russian
1900 - 1958 1959 - 1975 1976 - 1977 1978 - 1981 1982 - 2008 толщиномер Russian

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