U.S. federal trademark · Serial No. 73326417 · Reg. No. 1216529
Rheostat for Regulating Voltages Applied to Windings of Magnetic Chucks Combined with Mechanism for Demagnetizing the Chucks and Work Pieces Following Grinding or Other Machine Tool Operations on the Work Pieces
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.