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The ornamental design for an air sampling filter cassette, as shown. |
FIG. 1 is a perspective view of an air sampling filter cassette showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a rear elevational view thereof; and
FIG. 7 is a left side elevational view thereof.
Patent | Priority | Assignee | Title |
Patent | Priority | Assignee | Title |
3295359, | |||
3700411, | |||
4277259, | Feb 11 1980 | THERMEDICS INC | Air-sampling cartridge |
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