JZ

John J. Zelle

CL Canadian Patents And Development Limited: 2 patents #40 of 449Top 9%
📍 Ottawa, CA: #2,623 of 6,399 inventorsTop 45%
Overall (All Time): #2,324,721 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4937520 Instrument to measure the errors of apparent power meters Rejean J. Arseneau, Piotr S. Filipski 1990-06-26
4786859 RMS measuring apparatus for AC/DC voltages Rejean J. Arseneau 1988-11-22