Resources Contact Us Home
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
Method and apparatus for determining the altitude of a mobile device
Method of using N-thio compounds for oligonucleotide synthesis
Automatic pill dispenser
Bicycle carrier
Semiconductor devices and methods for changing operating characteristics and semiconductor systems including the same
Device and method for controlling brightness of organic light emitting diode display
Vapor phase decarbonylation process
  Randomly Featured Patents
Backstacking apparatus
Spatially mapped monochrome display in a color image
Device for absorbing liquid contaminants such as oil and gasoline and fumes thereof
Weather-agile reconfigurable automatic target recognition system
Welding rod having parallel electrical pathways
Built-in type outdoor unit for air conditioner
Stator having an interphase insulator
Hand-held magnifier apparatus
Method of judging hydrogen embrittlement cracking of material used in high-temperature, high-pressure hydrogen environment
Apparatus and method for coupling an embroidery accessory to an embroidery machine