A connector which has bellows type contacts of spring metal and a holder which has a bottom, a longitudinal slot for receiving a circuit panel, a cavity for housing the bellows type contact, a hollow formed at upper portion of the cavity and partition wall for separating the adjacent contacts. The bellows...http://www.google.es/patents/US3975076?utm_source=gb-gplus-sharePatente US3975076 - Receptacle for printed circuit board
