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The ornamental design for a semi-automatic bailer plug, as shown and described. |
FIG. 1 is a top front perspective view of a semi-automatic bailer plug, showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right end elevational view thereof;
FIG. 4 is a left end elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a bottom plan view thereof.
Patriarca, William C., McGraw, Leonard J.
Patent | Priority | Assignee | Title |
Patent | Priority | Assignee | Title |
2909144, | |||
2965126, | |||
3188994, | |||
3550548, | |||
4198918, | Feb 01 1979 | Pat-N-Mac, Inc. | Semi-automatic bailer plug |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jun 17 1980 | PATRIARCA WILLIAM C | PAT-N-MAC | ASSIGNMENT OF ASSIGNORS INTEREST | 003810 | /0899 | |
Jun 17 1980 | MC GRAW LEONARD J | PAT-N-MAC | ASSIGNMENT OF ASSIGNORS INTEREST | 003810 | /0899 | |
Oct 01 1980 | PAT-N-MAC | (assignment on the face of the patent) | / |
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