Sit-up bathtub

The ornamental design for a sit-up bathtub, as shown.

FIG. 1 is a front prospective view of a sit-up bathtub showing our new design.

FIG. 2 is a top plane view thereof.

FIG. 3 is a cross-sectional view taken on line 3--3 of FIG. 2.

FIG. 4 is a cross-sectional view taken on line 4--4 of FIG. 2.

Patent	Priority	Assignee	Title
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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Nov 05 1976		American Sterilizer Company	(assignment on the face of the patent)

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