coiffeur vs safety razor

coiffeur

noun
  • A male hairdresser. 

verb
  • To cut or style hair 

safety razor

noun
  • A razor, designed for safety, that protects the skin from all but the very edge of the blade (as opposed to a straight razor). 

How often have the words coiffeur and safety razor occurred in a corpus of books? (source: Google Ngram Viewer )