Image:Original ac crane drive.jpg
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[edit] Summary
Power Electronics International, Inc. developed the overhead hoist variable speed drive pictured here in 1969.
[edit] Licensing
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I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide. In case this is not legally possible, |
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 16:27, 9 November 2007 | 168×219 (10 KB) | Loudes13 (Talk | contribs) | (Power Electronics International, Inc. developed the overhead hoist variable speed drive pictured here in 1969.) |
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