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| Date: | 11 04 1935 |
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| Description: | Worker pours molten metal into a mold for a TracTracTor (crawler tractor) main frame at International Harvester's Milwaukee Works foundry. |
| Date: | 1943 |
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| Description: | Factory worker at International Harvester's Tractor Works. |
| Date: | |
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| Description: | A packing house worker demonstrates the revolutionary Thor air-powered cattle stunner that was called the first successful pneumatic stunning tool for the ... |
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