An adjustable exercise machine using resistance for exercise the upper torso and arm muscles of a user comprises a bench assembly pivotally coupled to a support frame, and a seat support assembly for supporting and/or adjusting the user's body positions, the bench assembly being angularly adjustable...http://www.google.ca/patents/US6471624?utm_source=gb-gplus-sharePatent US6471624 - Method for determining a bench pivot axle location on a support frame of an exercise machine
