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Roy H. Guerra, Jr.

Philadelphia, PA: #2,553 of 4,834 inventorsTop 55%

Pennsylvania: #43,221 of 74,527 inventorsTop 60%

Overall (All Time): #3,830,083 of 4,157,543Top 95%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5233649	Telephone ringing module	—	1993-08-03