1933 radio series  Flywheel, Shyster and Flywheel, which starred Groucho and Chico  Marx. (For obvious reasons, Harpo didnt participate in the radio  show). In the series, Groucho played Waldorf T. Flywheel, a lawyer;  in _Big Store, The (1941)_ (qv), he plays Wolf J. Flywheel, a  private detective. On radio, Chico played Emmanuel Ravelli,  Flywheels assistant; in the film, he is simply known as Ravelli,  and teams up with Flywheel midway through the story to help solve  the case. Nat Perrin, who receives story credit for the film, was  also the co