Resources Contact Us Home
Browse by Category: Main > Entertainment & Recreation
Class Information
Number: 84/38
Name: Music > Instruments > Automatic > Stringed > Pianos > Pneumatic type > Expression mechanism > Parts of piano moved > Rest rail shifted > Graduated shift
Description: The ends of the rest-rail may move through unequal distances, so the musical effect is graduated from bass to treble.

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
Sabatier process and apparatus for controlling exothermic reaction
Light-emitting device
Cationic polymers for antimicrobial applications and delivery of bioactive materials
Hair motion compositor system for use in a hair/fur pipeline
Method of manufacturing nitride semiconductor and nitride semiconductor element
Semiconductor memory device and manufacturing method thereof
Light-emitting device, film-forming method and manufacturing apparatus thereof, and cleaning method of the manufacturing apparatus
  Randomly Featured Patents
Exterior lead forming device for semiconductor devices
Detachable developing device for providing first and second voltages for an image forming apparatus
Method and apparatus for cooling the primary circuit of a pressurized water nuclear reactor
Z-filter media pack arrangement; and, methods
Method and device for making documents secure using unique imprint derived from unique marking variations
Bone connector with pivotable joint
Cold pressure-welding apparatus
Display stakes for potted plants
Detachable knee pad
Effective treatment modality for adult respiratory distress syndrome using L-histidine