Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Physical Medicine Instrument Co., a corporation, Indianapolis, Ind., and Eulalia Opperman, president, A. Henry Opperman, secretary-treasurer, and Homer A. Keller, vice president.