Search Constraints

Search: Origin Connecticut Remove constraint Origin: Connecticut Repository Francis A. Countway Library of Medicine Remove constraint Repository: Francis A. Countway Library of Medicine Subjects History of Medicine Remove constraint Subjects: History of Medicine Subjects Medical instruments and apparatus Remove constraint Subjects: Medical instruments and apparatus Date No date Remove constraint Date: No date
Number of results to display per page
View results as:
Understanding My Search Results

Search Results

1. Patent release from Elisha Perkins to Benjamin Goodhue, circa 1796

2. Patent release from Elisha Perkins to Isaac Backus, 1796