Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 290/74
Name: Prime-mover dynamo plants >

Sub-classes under this class:

Class Number Class Name Patents
290/1R Miscellaneous 901
290/2 Heating plants 204
290/3 Train 32
290/45 Traction 121
290/46 Starting and generating dynamo 134
290/47 Electric-starting motor with generator 28
290/48 Electric-starting motor 175
290/49 Rotary field and armature 13
290/4R Plural prime mover 148
290/5 Alternating current, rotary field and armature 15
290/50 Battery 57
290/51 Engine control 54
290/52 Turbogenerators 643
290/53 Tide and wave motors 703
290/54 Fluid-current motors 912
290/6 Multiple-armature dynamo 30
290/7 Electric control 57

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
Output queued switch with a parallel shared memory, and method of operating same
Biometric data display system and method
Method and apparatuses for solving weighted planar graphs
Permeable pressure sensitive adhesive
Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output communications systems
Point-of-sale cart
Signal processor and signal processing method
  Randomly Featured Patents
Defibrillator with a reconfigurable battery module
Laterally cyano- and fluoro-substituted terphenyls
Color printer and ink ribbon therefor
Focused stimulation in a medical stimulation device
Math problem checker
Method and apparatus for reducing data loss errors in a magnetic tape device
Thermal barrier coating and process therefor
Thermal print head device and thermal printer
Multi-stage hydrodesulfurization and hydrogenation process for distillate hydrocarbons
Device for delivering fuel from a reservoir to an internal combustion engine