U.S. patents available from 1976 to present.
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Patent No. 5377411

Hair Cutting Appliance

A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.

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Class 700/36 - Economic (e.g., cost)


Subclass of Class 700 - Data processing: generic control systems or specific applications
Definition: Subject matter where the constraint or limit value involves
No. of patents: 121
Last issue date: 11/29/2011


      4  
NumberTitleIssue Date
3932735Method of controlling supply of power
A digital computer system is employed to produce power system control. The computer system employs an economic dispatch program, a unit selection program and a tie line interchange program to determine off line a tie line schedule and unit commitments nee...
01/13/1976
      4  
 
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