PDF: Kellogg Intercoms Catalog
Kellogg Intercoms Catalog
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Kellogg Switchboard and Supply
1908
PDF: Telephones for Interior Use
Telephones for Interior Use
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Connecticut Telephone
1915
PDF: Interior Telephones Catalog
Interior Telephones Catalog
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Kellogg Switchboard and Supply
1918
PDF: Interior Telephones Catalog
Interior Telephones Catalog
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Dictograph Products
1923