A tacker has a magazine to contain staples and a striker movable against a spring biassed to eject the staples from an ejection slot. An integral handle and pawl are provided to engage the striker to move the striker against the spring bias, the pawl being disengageable from the striker to release the...http://www.google.fr/patents/US4399938?utm_source=gb-gplus-shareBrevet US4399938 - Tacker
