MAGNETIC BOARD KITS CONSISTING

Brand Owner Address Description
WRITE-ON-WHITE KRAPF BUSINESS SYSTEMS, INC. 75 O'NEILL ROAD MACEDON NY 14502 MAGNETIC BOARD KITS CONSISTING OF MAGNETIC BOARDS HAVING PORCELAINIZED WRITING SURFACES, LIQUID CHALK PENS, WATER-SOLUBLE MARKERS, ERASERS, AND MAGNETIC LABELS AND MARKERS;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A dartboard has board member, and the board member has a plurality of target blocks to be stuck by darts. The back side of the board member has an induction layer and a magnetic member. The magnetic member provides a fixed magnetic field, and the induction layer has a substrate and a circuit on the substrate. A dart with a steel iron or iron alloy point sticks into the board member, and disturbs the distribution of the magnetic field provided by the magnetic member, causing electromagnetic induction and inducing a current in the circuit of the induction layer to provide an automatic score.