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Eric Jannersten (1912–18 April 1982 ) was a Swedish bridge player, author and theorist. He is best known as the inventor of the bidding box device and the founder of the Jannersten Förlag AB, the largest European bridge equipment manufacturer.

Biography
Jannersten was born in 1912 in Stockholm. During his lifetime-long bridge career, he was a player, a teacher, a columnist, an author, a publisher, an editor, a commentator, an organizer and a tournament director.

He founded the Jannersten Förlag in 1939, and, as of 2022, the company still operates as a family business.

In 1939, Jannersten established Bridgetidningen, the first Swedish bridge magazine and the second oldest in the world, after The Bridge World.

Jannersten won several national titles. He represented Sweden in the 1956 European championships.

After Eric's death, his son Per Jannersten, also a successful bridge player and author, continued to run the family company in 1983. After Per's retirement, the business was continued by his daughter Anna Jannersten.

Eric was one of the founders and, between 1958 and 1976, executive secretary of the publishing organization International Bridge Press Association. He retired in 1976. His son Per continued the father's engagement with IBPA and is still its chairman.