forwarded to Wikimedia.org by email (Ticket #2007070510005121)
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This work has been released into the public domain by its author, Sabine Salfer. This applies worldwide. In some countries this may not be legally possible; if so: Sabine Salfer grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
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Captions
Bernard Heine's chainsaw, known as the osteotome, used a hand crank but was still difficult to use. Heine was one of the only surgeons who ever mastered using it.