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| First Page | Document Content | |
|---|---|---|
 Date: 2015-09-01 21:55:59Climbing Outdoor recreation Climbing equipment Mountaineering equipment Adventure travel Belaying Ropework Carabiner |
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| First Page | Document Content | |
|---|---|---|
Date: 2015-09-01 21:55:59Climbing Outdoor recreation Climbing equipment Mountaineering equipment Adventure travel Belaying Ropework Carabiner |
Add to Reading List |
WHY EXTREME ENGINEERING’S AUTO-BELAY SYSTEM? The President of Extreme Engineering, Jeff Wilson, holds the US Patent for the first automatic belay system and is a chairman on the ASTM (American Society of Testing Materi