From the deep: the Petzl adventure

This story is based on research, eyewitness accounts, and personal experiences, but is not a complete history. We could have spoken with many other people, given the depth of the Petzl story. We hope that ever yone who is or was at one point part of the Petzl adventure will see their contribution in these pages. This book is dedicated to them.

Sophie Cuenot and Hervé Bodeau

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