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Sprague stethoscopes

Dr. Howard Sprague was the first to design a combinded bowles diaphragm with a Ford bell in one stethoscope with a lever to switch between the two.

Sprague Bowles c. 1926

Sprague Bowles c. 1926

Spraque Bowles c. 1930

Spraque Bowles c. 1930

Reiger Bowles modification of Sprague Bolwes mechanism, c. 1940

Reiger Bowles modification of Sprague Bolwes mechanism, c. 1940

Spraque Bowles in original box

Spraque Bowles in original box

Reiger bowles box.jpg

Reiger bowles box.jpg

Sprague Rappaport stethoscope

Sprague Rappaport stethoscope

Spraque Rappaport sthetoscope out of case.

Spraque Rappaport sthetoscope out of case.

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