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Dental handpiece
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Patent number 4,519,780
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Issue date May 28, 1985
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Kaltenbach & Voigt GmbH & Co.
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Ernst Strohmaier
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Dental-instrument handle
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Patent number 4,213,756
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Issue date Jul 22, 1980
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Kaltenbach & Voigt GmbH & Co.
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Heinrich Reich
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Dental handpiece
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Patent number 4,212,641
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Issue date Jul 15, 1980
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Kaltenbach & Voigt GmbH & Co.
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Eugen Eibofner
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Dental handpiece
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Patent number 4,212,640
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Issue date Jul 15, 1980
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Kaltenbach & Voigt GmbH & Co.
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Hans Loge
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE