File:Elctro-percussive welfing machine, Westinghouse Company, about 1915.jpg
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Summary
| Description |
English: Elctro-percussive welfing machine, Westinghouse Company, about 1915 |
| Date | |
| Source | Electric Welding, Ethan Viallm, McGRAW-HILL BOOK COMPANY, INC.1921 |
| Author | Unknown author |
Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:27, 24 August 2024 | | 800 × 1,200 (257 KB) | Billzweig | Uploaded a work by {{Unknown|author}} from Electric Welding, Ethan Viallm, McGRAW-HILL BOOK COMPANY, INC.1921 with UploadWizard |
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