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The ornamental design of a head unit for a post hole digger, as shown and described. |
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FIG. 1 is a front elevational view of a head unit for a post hole digger illustrating my new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 29 1981 | H C A, INC | TRUE TEMPER HARDWARE COMPANY, F K A H C A , INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS EFFECTIVE ON 09 29 1981 | 005509 | /0258 | |
| Aug 07 1984 | PORTZ, WILLIAM E | TRUE TEMPER CORPORATION A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004298 | /0190 | |
| Aug 08 1984 | USM Corporation | (assignment on the face of the patent) | / | |||
| Dec 09 1985 | TRUE TEMPER CORPORATION, A CORP OF DE | USM CORPORATION, A CORP OF NEW JERSEY | ASSIGNMENT OF ASSIGNORS INTEREST | 004514 | /0879 | |
| May 08 1987 | USM Corporation | EMHART ENTERPRISES CORP | CHANGE OF NAME SEE DOCUMENT FOR DETAILS EFFECTIVE MAY 8, 1967 | 004726 | /0849 | |
| Sep 11 1987 | EMHART ENTERPRISES CORP | EMHART INDUSTRIES, INC , A CT CORP | MERGER SEE DOCUMENT FOR DETAILS | 005365 | /0919 | |
| Nov 07 1990 | EMHART INDUSTRIES, INC | H C A , INC | ASSIGNMENT OF ASSIGNORS INTEREST | 005505 | /0044 |
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