Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Entertainment & Recreation
Class Information
Number: 84/150
Name: Music > Instruments > Automatic > Selectors > Trackers and sheets > Playing on wind and rewind
Description: The sheet has two sets of perforations, one set to be used as usual, the other to be used during rewinding.










Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
  Recently Added Patents
Web-based system and method for video analysis
Polarization-coupled ferroelectric unipolar junction memory and energy storage device
Burner grate
System and method for burst separation and extended interleaving length
Viruses lacking epithelial cell receptor entry
Pattern generation method and pattern generation program
Circuit and method for generating an AC voltage from a plurality of voltage sources having a temporally variable DC output voltage
  Randomly Featured Patents
Security system
Adjustable ratio transmission switch
Scroll type compressor with elongated discharge port
Forward-drive apparatus for a bicycle
Syringe with ultrasound emitting transducer for flow-directed cannulation of arteries and veins
Process cartridge and refilling method therefor
Message authorization system and method
Pigment compositions for solvent and water-based ink systems and the methods for producing them
Display panel transporting apparatus and a display panel transporting unit
Self-retaining needle assembly and valve element for use therein