Inventor

FRIESL ROBERT C

US3 patents

⚠️ This page may combine multiple inventors who share the name “FRIESL ROBERT C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WILLIAMS ELECTRONICS GAMES INC

2 patents

US5507488AApr 16, 1996

Ball diverter for a pinball game

WILLIAMS ELECTRONICS GAMES INC134 citations94

US5899454AMay 4, 1999

Ramp with integral ball deflector for pinball games

WILLIAMS ELECTRONICS GAMES INC115 citations92

SCHWINN BICYCLE CO

1 patent

US5211613AMay 18, 1993

Exercising machine with improved anti-drafting energy absorbing fanwheel

SCHWINN BICYCLE CO43 citations89