"Dual Action Climber", p. 16, published by Sharper Image, P.O. Box 7031, San Francisco, Calif., 94120-7031, telephone 1-800-344-4444, date of publication unknown. |
"Treadwall", p. 17, published by Sharper Image, P.O. Box 7031, San Francisco, Calif., 94120-7031, telephone 1-800-344-4444, date of publication unknown. |
"C614 Vertical Ascent Climber", product brochure published by Tunturi, Inc., P.O. Box 2470, Redmond, Wash. 98073, telephone 206-881-8156, date of publication unknown. |
"Versa Climber", first version, product brochure published by Heart Rate, Inc., 3188-E Airway Avenue, Costa Mesa, Calif. 92626, telephone 714-850-9716, date of publication unknown. |
"Versa Climber", second version, product brochure published by Heart Rate, Inc., 3188-E Airway Avenue, Costa Mesa, Calif. 92626, telephone 714-850-9716, date of publication unknown. |