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7255566 |
Write-on wipe-off book holder
An educational device that makes printed material, in the form of a child's workbook of varying thickness in the open reading position, or sheet material in the form of a worksheet, or blank...
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6506058 |
Writing board with reference lines which are invisible from a distance and fabrication process
The present invention relates to a writing board with reference lines which are invisible from a distance, and to a process for its fabrication. The board is comprised of at least one support...
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6464507 |
Magnetic coaching board
A sports coaching aid which uses a flexible, rollable, single vinyl magnetic sheet that can adhere to a magnetizable surface. The magnetic sheet is screen-printed to display the markings of a...
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6439572 |
Baseball and soccer training system for children
A system for training and coaching field and court sports, and more particularly, for baseball and soccer for children. Included as elements are a magnetic game board, a multiplicity of miniature...
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D460984 |
Push pin board illustrating a soccer field
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6379156 |
Apparatus and method for organizing and strategizing team play
The organizer ( 10 ) includes a traditional ringed binder ( 12 ) which contains a strategy page ( 20 ), a storage page ( 40 ), a player position page ( 50 ), and magnetic player pieces ( 60 ). The...
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6139331 |
Board base apparatus
A board base provides a storage and display unit for a plurality of markable white erasable presentation panels. Such presentation panels can be used with erasable marker pens. The board base can...
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4896103 |
Current measuring magnetic field sensor having magnetooptic element with its easy axis of magnetization at right angles to the magnetic field generated by the current
The magnetic field sensor is described for sensing the magnetic field, which comprises a light source part, a magnetic field detection part which contains a magnetooptic element consisting of a...
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