American Thermophone Co.
Archival Resources
| Role | Title | Holding Repository | |
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| referencedIn | Clifford, Harry Ellsworth, 1866-. Papers of Harry E. Clifford, 1914-1921 (inclusive). | Harvard University Archives. |
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| Relation | Name | |
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| associatedWith | Clifford, Harry Ellsworth, 1866- | person |
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