Just a guess,but I would think that if Harry had a patent on it,it would have had to have expired. I believe Vermeer had a patent on the large round baler for a time. At least that's what I was told was the reason that New Holland used chains instead of belts for so many years. The other companies paid Vermeer a royalty on the patent,but New Holland refused. Now the patent has expired and they've come around to using belts. No idea if that's true of not,but it's what I was told back in the late 70s,early 80s when the big round balers were gaining popularity.
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Today's Featured Article - Identifying Tractor Smells - by Curtis Von Fange. We are continuing our series on learning to talk the language of our tractor. Since we can’t actually talk to our tractors, though some of the older sect of farmers might disagree, we use our five physical senses to observe and construe what our iron age friends are trying to tell us. We have already talked about some of the colors the unit might leave as clues to its well-being. Now we are going to use our noses to diagnose particular smells. ELECTRICAL SMELLS
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