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C1.1 - Charts miscellaneous

Description: C1.1 - Charts miscellaneous - Drawings of manhole cover #4240.
Type: Visual Materials(Opens in new tab)
Date: 6/10/1911
Call number: photCL SCE 02 - 01775
Find out more: View in the Huntington Digital Library(Opens in new tab); View in the Library catalog(Opens in new tab)

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C1.1 - Charts miscellaneous
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C1.1 - Charts miscellaneous - Drawings of manhole cover #3351. [square manhole cover - not made very long because the covers could fall into the hole].
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C1.1 - Charts miscellaneous
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C1.1 - Charts miscellaneous - revised drawing for an Edison manhole cover. [Designed in 1904 and remains in use today.]
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C1.1 - Charts miscellaneous
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C1.1 - Charts miscellaneous - Long Beach Steam Plant construction - Copy of Dr. #E-3351. Transformer Vault frame & lid - [Square] Manhole cover.
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C1.1 - Charts miscellaneous
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C1.1 - Charts miscellaneous - Two page article in The Electrical World (Volume XVI , No. 1; July 5, 1890) promoting Edison Company's "Underground Tube System" of electrical connectors, couplings, feeders, manhole covers, etc.
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C1.1 - Charts miscellaneous
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C1.1 - Charts miscellaneous - Edison Arch [cover of Edison publication - employee benefits]
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C1.1 - Charts miscellaneous
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C1.1 - Charts miscellaneous - Book Cover for J. B. Miller Memorial. .
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