- Bausch & Lomb began making refractometers when World War I limited the import of European instruments coming into the United States. The inscription on this Abbé-type refractometer reads "Bausch & Lomb Optical Company Rochester N.Y. Ser. No. 77381 USA Pat. No. 2,080,841." The referenced patent, issued to Harold Straat in 1937 and assigned to Bausch & Lomb, described a new prism system and box for refractometers.
- Currently not on view
- Object Name
- date made
- after 1937
- after 1956
- Bausch & Lomb Optical Company
- place made
- United States: New York, Rochester
- overall: 39.5 cm x 19.2 cm x 22 cm; 15 9/16 in x 7 9/16 in x 8 21/32 in
- overall: 8 5/8 in x 15 1/8 in x 7 3/8 in; 21.9075 cm x 38.4175 cm x 18.7325 cm
- ID Number
- catalog number
- accession number
- Credit Line
- Miles E. Hess, Jr.
- World War I
- Data Source
- National Museum of American History
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