Series 9: Brush Companies, 1880-1954




Subseries 1: Brush Laboratories Company, 1921-1954

Box 29 / Folder 8
Audit, 1927


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Box 29 / Folder 9
Building Lease, 1921


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Box 29 / Folder 10
Chemical Rubber Company. Purchase Orders and Invoices, 1922


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Box 29 / Folder 11
Confidentiality Agreements. Beryllium Experiments, 1932


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Box 29 / Folder 12
Employees, 1921-1933


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Box 29 / Folder 13
Hoopes Aluminum Refining Process, 1933


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Box 29 / Folder 14
License Agreements, 1923-1924


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Box 29 / Folder 15
Patent Transfers, 1923-1930


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Box 29 / Folder 16
Piezo Electrical Crystals, 1926-1933


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Box 29 / Folder 17
Stock Agreements, 1923-1925


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Box 29 / Folder 18
United Machine and Manufacturing Company, 1923-1924


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Subseries 2: Brush Electric Company, 1880s-1898

Box 29 / Folder 19
Apparatus for Arc Lighting. Brush System. Instruction Book, 1898


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Box 29 / Folder 20
Brush Dynamo Electric Machines. Specifications, no date


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Box 29 / Folder 21
Brush Electric Light and Electro Plating Apparatus. Catalog, ca.1880


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Box 29 / Folder 22
Brush Incandescence System. Catalog, ca. 1887


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Box 29 / Folder 23
Brush System of Electric Lighting. Descriptions, 1927-1929


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Box 29 / Folder 24
Brush System of Electrical Power Distribution. Catalog, ca. 1887


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Box 29 / Folder 25
Equipment Blueprints, 1883-1893


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Box 30 / Folder 1
Advertisements and Testimonials, ca. 1888


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Box 30 / Folder 2
Brush Direct Incandescence System. Catalog, 1892


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