Harry Soref

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Harry Soref (1887-1957) was an American locksmith and businessman. He was the founder of the Master Lock company.[1]

Soref was born in Russia, and immigrated to the United States.[1] In 1921, he founded the Master Lock company in Milwaukee, Wisconsin.[2] The company built locks based on Soref's designs using laminated steel to build strong yet inexpensive locks; he received over 80 patents for his designs.[1]

Soref and his wife Bertha had five children.[1] He died in Phoenix, Arizona, at the age of 70.[3]


  1. ^ a b c d "The man who dreamed of locks". Milwaukee Notebook. 21 March 2017.
  2. ^ "March 2, 1887: Birth of the Master Locksmith". WIRED.
  3. ^ "HARRY SOREF, 70, INVENTOR, IS DEAD; Devised Laminated Padlock --Founder of Master Co. Held Eighty Patents". The New York Times.