Ruth K. Krell, 76, a partner in the old Krell Sales Company, a wholesale supplier of education equipment, died of pneumonia Feb. 22 at the George Washington University Hospital.

She was born in Upper Crabtree, N.C., and reared in Kents Store, Va. After graduating from Madison Teachers College, she worked in several cities on the East Coast as a dietician, including New York City where she attended the Teachers College of Columbia University. She moved to the Washington area in 1948.

Mrs. Krell worked as a secretary for the L.G. Balfour Company and Star Pontiac before she and her husband, August John Krell, founded their sales company. Krell Sales later was absorbed by Educational Aids Inc.

Following her husband's death in 1971, Mrs. Krell continued to live in Washington and resided at the Washington Home at the time of her death.

Survivors include two daughters, Patricia K. Yates and Jane Rosenbloom, both of Washington; five sisters, Margaret Thompson of Fredericksburg, Va., Lorene Hilbert and Virginia Morris, both of Kents Store, Dare Lowman of Baltimore, and Alma Howell of Suffolk, Va.; three brothers, John Boone Kirkpatrick of Kents Store, Ward Kirkpatrick of Waynesville, N.C., and Woody Kirk of New York City, and two grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the House of Ruth, 459 Massachusetts Ave. NW.