Inventor

SCHUMAKER JON S

3 patents

Patents

3 patents

US4756477AJul 12, 1988

Plate for supporting railway rails and a track assembly using it

PANDROL LTD24 citations77

US4513912AApr 30, 1985

Holding a railway rail down on a support member

PANDROL LTD10 citations68

US4349151ASep 14, 1982

Holding a railway rail down on a support member

PANDROL LTD13 citations68