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FR Mfg. Corporation Patents
FR Mfg. Corporation
Stockton, CA
No. of patents:

Patent Number Title Of Patent Date Issued
5421147 Nut harvester June 6, 1995
A nut harvester includes a frame drawn by a tractor over nut and debris windrows on the ground of a nut orchard. The nut harvester collects the nuts from the windrows and separates the debris collected therewith while minimizing the dust emissions and airborne pollutants generated by the
5375654 Turbulating heat exchange tube and system December 27, 1994
Heat exchange apparatus including a tube having inward projections or turbulating structure extending into the tube at substantially all angular locations around the diameter of the tube except along a drainage path extending along the entire bottom inner surface of the tube. The width o

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