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			 The ornamental design for a mass spectrometer combined with liquid chromatograph, as shown.  | 
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FIG. 1 is a front, top and right side elevational perspective view of a mass spectrometer combined with liquid chromatograph showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top plan elevational view thereof;
FIG. 4 is a left elevational view thereof;
FIG. 5 is a right elevational view thereof;
FIG. 6 is a rear elevational view thereof; and,
FIG. 7 is a bottom plan elevational view thereof.
Kato, Yoshiaki, Miyata, Tomoyuki, Mimura, Tadao, Hashimoto, Kazunori, Ohnuma, Mitsuru
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Nov 10 1992 | OHNUMA, MITSURU | Hitachi, LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006822 | /0149 | |
| Nov 10 1992 | MIYATA, TOMOYUKI | Hitachi, LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006822 | /0149 | |
| Nov 10 1992 | HASHIMOTO, KAZUNORI | Hitachi, LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006822 | /0149 | |
| Nov 10 1992 | KATO, YOSHIAKI | Hitachi, LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006822 | /0149 | |
| Nov 10 1992 | MIMURA, TADAO | Hitachi, LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006822 | /0149 | |
| Feb 03 1993 | Hitachi, Ltd. | (assignment on the face of the patent) | / | 
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