Patent
   D246666
Priority
Oct 08 1974
Filed
Oct 08 1974
Issued
Dec 13 1977
Expiry
Dec 13 1991
Assg.orig
Entity
unknown
2
5
n/a
The ornamental design for a biological monitoring chamber, as shown and described.

FIG. 1 is a perspective view of a biological monitoring chamber showing my new design;

FIG. 2 is a side elevation thereof, the opposite side being a mirror image of the side shown; and

FIG. 3 is a fragmentary exploded perspective view.

Schlichting, Jr., Harold E.

Patent Priority Assignee Title
D377453, Feb 22 1994 Side-stream sampling device
ER5869,
Patent Priority Assignee Title
2677646,
3197384,
3684660,
3927701,
944752,
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