TITLE: Stethoscope INVENTOR: William Ford YEAR: 1881 PRINT#: F7487S In 1851, Arthur Leared invented a binaural stethoscope, and in 1852 George Cammann perfected the design of the instrument for commercial production, which has become the standard ever since. However, Cammann did not patent his device since he thought an useful instrument for the medical profession should be given to the profession. Ford modified the piece that comes in contact with the patient's skin and patented this device.Reproduction of the original patent artwork and application submitted by William Ford to the US Patent & Trademark Office in 1881 Art is printed on premium paper for an aged and authentic look Framed art is double-matted and presented in a high-quality wood & glass frame Makes a great doctor nurse medic gift! 11x14 Framed Overall frame size 13-1/4 x 16-1/4 Mat is 2 in wide around art Double-matted: charcoal (top) and black (bottom) Frame is sealed and includes hanging hardware
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