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The ornamental design for single-piece grate bar key for stokers feeding steam generator furnaces, as shown and described. |
FIG. 1 is a plan view of one form of the invention.
FIG. 2 is a front view of the embodiment of FIG. 1.
FIG. 3 is a bottom view of the embodiment of FIG. 1.
FIG. 4 is a left side view of the embodiment of FIG. 1.
FIG. 5 is a right side view of the embodiment of FIG. 1; and,
FIG. 6 is a sectional view taken along the line 6--6 of FIG. 3.
Hapgood, Mark R., Semyanko, Ivan, Mann, Jeffrey S.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 06 2000 | COMBUSTION ENGINEERING, INC | ABB ALSTOM POWER INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 010785 | /0407 | |
Jun 22 2000 | ABB ALSTOM POWER INC | ALSTOM POWER INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 011575 | /0178 | |
Jun 08 2011 | ALSTOM POWER INC , | Alstom Technology Ltd | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 026415 | /0410 |
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