EXHIBIT 21.1
 
 
 
 
                           SUBSIDIARIES OF THE COMPANY
 
 
  The following is a list of the subsidiaries of Autoclave Engineers, Inc. The
Company owns, directly or indirectly, 100% of the voting securities of each
subsidiary.
 
 
                               
                                              State of Jurisdiction             
Name                                            or Incorporation                
- ----                                          ---------------------
                                            
Unit Foreign Sales Corporation                    Virgin Islands
Unit Instruments, Inc.                              California
Unit Instruments Ireland Limited                     Ireland
Unit Instruments Japan, Inc.                          Japan
Unit Instruments, GmbH                               Germany
Unit Instruments Korea Ltd.                        South Korea