In accordance with the present invention, an improved chop saw is employed. The chop saw includes a base, a rotatable table rotatably disposed on said base, and a saw unit pivotably connected to the table. The saw unit including a blade, a motor for driving the blade, and a housing for covering the motor....http://www.google.fr/patents/US20020157516?utm_source=gb-gplus-shareBrevet US20020157516 - CORDLESS CHOP SAW
Numéro de demande: 09/134,135 Numéro de publication: US 2002/0157516 A1 Date de dépôt: 14 août 1998 Brevet délivré: US6523447 ( Date de délivrance 25 févr. 2003)