Portland Cement and Process of Manufacturing the Same, July 23, 1907
Item
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Title
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Portland Cement and Process of Manufacturing the Same, July 23, 1907
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Author
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Thomas A. Edison
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Date Executed
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1904-06-20
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Date Filed
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1904-06-28
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Date Issued
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1907-07-23
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Type
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Patent Issued
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Subject
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Cement
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Document ID
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PAT861241
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Has Format
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https://iiif.archive.org/iiif/edisonpatent861241/manifest.json
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Rights
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Edison's patents are in the public domain and have been made available through the generosity of David Kovanen.
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Publisher
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The Thomas A. Edison Papers
