Serial Number

72121831

Filing Date

Jun 12, 1961

Registration Date

Aug 6, 1963

Trademark by

KEYSTONE INDUSTRIES INC.

Classification Information

Railroad Hopper Car Door Frames, Hopper Car Door Locks, Covered Hopper Car Door Outlets, Railroad Freight Car [ Shock Control] Cushion Underframe and Impact Absorber Units, and Freight Car Strap Anchors

Nonmetallic Building Materials