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[Trade Journal] Publication: Arnold Bulletin Chicago, IL, United States |
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[Title only] |
| Keywords: | Power Transmission : Elgin and Belvidere Electric Railway : Locke Insulator Manufacturing Company : M-2430 |
| Researcher notes: | Locke No. 408A is M-2430 |
| Supplemental information: | |
| Researcher: | Bob Stahr |
| Date completed: |