ANNA LOSER of Ridgewood died on Wednesday, August 15, at the age of 90. A native of Yugoslavia, she was the wife of the late Alois and devoted mother of Brigitte Petsche. She is also survived by grandchildren Andrea, Karin and Ronald and nine great-grandchildren. A Mass of Christian Burial was offered at Our Lady of the Miraculous Medal Church, Ridgewood, followed by interment at Cypress Hills Cemetery, under the direction of George Werst Funeral Home, 71-41 Cooper Ave., Glendale.