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Subjects and Genres: ';
“...Manufacturing--Philadelphia--20th century Local sources...”
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Manuscript
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Creator:
Brown, Charles Stuart 1915-1993.
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Record Source:
Archival Materials
Manuscript
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Creator:
Batcheler, George Dewey 1926-2009., Batcheler, Penelope Hartshorne 1928-2007., Boëthius, Essie Sahlin 1859-1950., Hartshorne, Ellen Sahlin 1895-1988., Hartshorne, Richard 1888-1975., Sahlin, Axel 1826-1909., Sahlin, Axel 1855-1937., Sahlin, Axeline Örtendahl 1834-1922., Sahlin, Gertrude Chandler 1860-1953., Sahlin, Robert Chandler 1889-1967.
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Record Source:
Archival Materials
Manuscript
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Creator:
Greenewalt, Mary Elizabeth Hallock 1871-1950.
Contents or Abstract: ';
“... recounted how manufacturers and theatre owners conspired to utilize her light control process without...”
Record Source:
Archival Materials
Manuscript
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