Seattle signs 3 to minor league deals
Gillespie, 29, split last season between San Francisco and the Chicago Cubs. He appeared in 28 major league games last season and previously played in the Arizona organization.
Palmer has appeared in 63 career major league games, but not since 2012 with San Diego. Palmer, 34, spent last season with Triple-A Albuquerque in the Los Angeles Dodgers' organization.
Ramirez, 32, has pitched in parts of eight seasons with Colorado, Kansas City, Boston, San Francisco and the New York Mets. Last season, he appeared in six games for the Giants.