Letter to Mr Charles E. Hughes 21/13/1922
Banting, Frederick Grant, Sir, 1891-1941
November 21 1922
1 leaf ; 28 x 21 cm.
Carbon copy of typescript letter. Banting asks Mr. Hughes to support Collip and Best's application for the U. S. patent on insulin.
MS. COLL. 76 (Banting), Box 1, Folder 23
Title based on content of letter.
Hughes, Charles Evans, 1862-1948Insulin - Patents