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With the publicised information (Oct 2003) on the Australian development resonant technology for pile driving as adapted in Canada by Resonance Technology International -
http://www.canada.com/technology/story.html?id=BA5FAA75-7321-40A4-8FE6-E6752A29EA37
We would like to know, has any more progress been made since the prototype was created. A hammer with 3 moving parts is clearly of interest.
If any forum member has additional information we would be grateful if you would rely by email, posting here or via our forum.
http://www.miniape.com/forum
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Subject:
Sonic Vibrators 
