John W. Spaniol — 3 Patents at Frederick Electronic

John W. Spaniol has been granted 3 US patents while listed as an inventor at Frederick Electronic. The first was granted in 1981 and the most recent in October 1982. John W. Spaniol ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John W. Spaniol in West Hollywood, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4355403	Teletypewriter line keyer with switching current regulator	Ronald E. Tollum, Julius A. Barthelme	1982-10-19
4292465	Distributed processing telex exchange	John F. Wilson, Edward D. Hoover, Philip K. Hammond, William A. Moshier, Jack L. Woodell +3 more	1981-09-29
4291196	Circuit for handling conversation data in a distributed processing telex exchange	John J. Bowerman, Marvin Perlman	1981-09-22

John W. Spaniol — 3 Patents

Issued Patents All Time

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