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Dental handpiece connector
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Patent number 4,177,564
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Issue date Dec 11, 1979
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Lloyd P. Flatland
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Telescoping handpiece
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Patent number 4,121,342
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Issue date Oct 24, 1978
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Lloyd P. Flatland
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Bearing for a high speed air turbine
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Patent number 3,994,544
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Issue date Nov 30, 1976
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Lloyd P. Flatland
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Dental handpiece
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Patent number 3,962,789
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Issue date Jun 15, 1976
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Lloyd P. Flatland
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Dental handpiece
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Patent number 3,962,788
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Issue date Jun 15, 1976
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Lloyd P. Flatland
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Vacuum turbine for a drill
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Patent number 3,932,055
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Issue date Jan 13, 1976
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Lloyd P. Flatland
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR