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The ornamental design for a floor maintenance machine, substantially as shown. |
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FIG. 1 is a front perspective view of a floor maintenance machine showing our new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a rear elevational view thereof.
Johnson, Logan W., Brown, Neil F., Star, Roger D.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Aug 31 1982 | BROWN, NEIL F | TENNANT COMPANY A CORP OF MN | ASSIGNMENT OF ASSIGNORS INTEREST | 004054 | /0348 | |
| Aug 31 1982 | STAR, ROGER D | TENNANT COMPANY A CORP OF MN | ASSIGNMENT OF ASSIGNORS INTEREST | 004054 | /0348 | |
| Aug 31 1982 | JOHNSON, LOGAN W | TENNANT COMPANY A CORP OF MN | ASSIGNMENT OF ASSIGNORS INTEREST | 004054 | /0348 | |
| Sep 10 1982 | Tennant Company | (assignment on the face of the patent) | / |
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