| Book | Page | Context |
|---|---|---|
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MAIN SHAFT W 1 103361 3363 80 X 2 8 W I I T 1976752 1 4 30 MAIIN SHAFT 80 X 2 8 W A T FED 1978461 1 46 05 MAIIN SHAFT |
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CANADA 1976746 1 44 30 MAIN SHAFT 81 X 2 8X W M T NM6 EXPORT CANADA 1976752 1 40 30 MAIN SHAFT 81 X 2 5 5 W CLOSED LOOP |