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07-10-2011, 06:02 AM
Thread: Cattaraugus - Bellied 5/8
by randydance062449- Replies
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So now we have an explanation of the Hamburg...
So now we have an explanation of the Hamburg grind from the patent description. Was this patent the origin of the current, bi-concave, full hollow grind? It is interesting that the diagram in the...
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