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The ornamental design for sight glass for sprinkler system lines, as shown and described. |
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FIG. 1 is a left front perspective view of an embodiment of a sight glass for sprinkler system lines showing my new design;
FIG. 2 is a front view thereof, the opposite side being the mirror image thereof;
FIG. 3 is a left end view thereof;
FIG. 4 is a right end view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a left front perspective view of a second embodiment of the design;
FIG. 7 is a front view thereof, the opposite side being the mirror image thereof;
FIG. 8 is an left end view thereof;
FIG. 9 is a right end view thereof; and,
FIG. 10 is a bottom view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Apr 06 1998 | BERKELHAMMER, MICHAEL A | UNITED BRASS WORKS, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009176 | /0344 | |
| Apr 16 1998 | United Brass Works, Inc. | (assignment on the face of the patent) | / |
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