Letter to Dr. J. J. R. Macleod regarding Walden patent 3/04/1923
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Letter to Dr. J. J. R. Macleod regarding Walden patent 3/04/1923
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Typescript letter written on the Offices of Charles H. Riches letterhead and signed by Charles H. Riches. Letter regarding the Eli Lilly Company and Walden's application for a patent for precipitating ...
