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The ornamental design for a clean room entry-exit system, as shown. |
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FIG. 1 is a perspective view of a clean room entry-exit system showing my new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof; and
FIG. 7 is a rear elevation view thereof.
| Patent | Priority | Assignee | Title |
| D295567, | Apr 01 1985 | Shuttleworth, Inc. | Combined air filteration housing and conveyor unit |
| D641860, | Feb 25 2010 | PHC HOLDINGS CORPORATION | Draft chamber |
| Patent | Priority | Assignee | Title |
| 3777736, | |||
| 3841324, | |||
| 4016809, | Jul 16 1975 | AMERICAN SCIENTIFIC MANUFACTURING AND CONSTRUCTION CORPORATION | Clean air workbench |
| 4548627, | May 01 1984 | TGL ACQUISITION CORP , A FL CORP | Fume hood with modular blower and filter assembly |
| DE1122296, |
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