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Start Over Subjects Patents as Topic ✖Remove constraint Subjects: Patents as Topic Titles Dr. J. Allen's refutation and vindication of the charges alleged against him before the American Society of Dental Surgeons: at their last annual meeting in August, 1847, for his having obtained a patent for an invention for restoring the contour of the face ✖Remove constraint Titles: Dr. J. Allen's refutation and vindication of the charges alleged against him before the American Society of Dental Surgeons: at their last annual meeting in August, 1847, for his having obtained a patent for an invention for restoring the contour of the face Dates by Range 1800-1849 ✖Remove constraint Dates by Range: 1800-1849

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  • Dr. J. Allen's refutation and vindication of the charges alleged against him before the American Society of Dental Surgeons: at their last annual meeting in August, 1847, for his having obtained a patent for an invention for restoring the contour of the face1