Means for associating a driver with the driver operating mechanism of a fastener driving tool, the driver constituting a part of a fastener-containing magazine manually attachable to and detachable from the tool. The fastener driving tool is of the type having a housing containing a driving element constituting...http://www.google.com/patents/US4566621?utm_source=gb-gplus-sharePatent US4566621 - Means for associating a driver, constituting a part of a replaceable fastener containing magazine, with the driver operating mechanism of a fastener driving tool