1. 1
   A third of a century of De Zeng instrumentation : an account of the scientific and mechanical contributions of Henry L. DeZeng to the domain of eye, ear, nose and throat diagnostic...

   by Sheard, Charles, 1883-
   Published 1923

   Camden, N.J. : De Zeng Standard Co. , [c1923]

   1 online resource (47 p.) : ill.

   Subjects: “...Medical instruments and apparatus....”
   

   Local Call Number: Loading...
   

   Center for Research Libraries
   

   Online Resource

   Save
   

   Saved in:
2. 2
   To all people to whom these presents shall come, Greeting : Whereas I, Elisha Perkins, of Plainfield, in the state of Connecticut, have ... obtained a patent in the form following...

   by Perkins, Elisha, 1741-1799
   Published 1796

   [Philadelphia?] : [publisher not identified], [1796?]

   1 online resource (1 sheet)

   Subjects: “...Medical instruments and apparatus....”
   

   Local Call Number: Loading...
   

   LLMC Digital
   

   Online Resource

   Save
   

   Saved in:

Search Tools: