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The ornamental design for a priming valve unit for internal combustion engines, as shown. |
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FIG. 1 is a side elevational view of a priming valve unit for internal combustion engines embodying my new design;
FIG. 2 is a front end elevational view thereof;
FIG. 3 is a rear end elevational view thereof;
FIG. 4 is a side elevational view thereof opposite to that of FIG. 1;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof.
| Patent | Priority | Assignee | Title |
| 5782215, | Jun 13 1997 | Intake/exhaust valve | |
| D361770, | Apr 26 1994 | Fuel economizer |
| Patent | Priority | Assignee | Title |
| 3750639, |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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