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
Double diffused metal oxide semiconductor device and manufacturing method thereof
Rotating sunlight/light beam for fractional/beneficial use
Optical writer and image forming apparatus including same
Controller for machine tool and five-axis simultaneous control machine tool controlled thereby
Press nut
Crowd control barrier II
Evolutionary clustering algorithm
  Randomly Featured Patents
Top with a lighting device
Parasitic and saprophagous mite control in beneficial insects
Satellite based positioning method and system for coarse location positioning
Electronic flash device
Golf ball retrieval device
Seat recliner and floor latch with interlock
Method and device for surface treatment of film webs
Method for use in laparoscopic hernia repair
Web stripping apparatus
Fishing lure