The specifications claim the parallel facing cutting surfaces, and the blade extending from the handle.
An example marked A&J MADE IN U.S.A. PAT NO. 2240410 is nearly identical in physical appearance to a parer marked ECKO NEE ACTION PAT NO. 2232940. The blade and handle also appear in a parer marked NEE ACTION U.S.A. PAT. Nos. 2220169 2240410.