196 resultados para Technological improvements
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Mode of access: Internet.
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Transportation Systems Center, Cambridge, Mass.
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Federal Railroad Administration, Office of Policy and Program Development, Washington, D.C.
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Mode of access: Internet.
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"September 1990."
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Mode of access: Internet.
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"December 1988".
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Mode of access: Internet.
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Mode of access: Internet.
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Spine title: Tanning, currying and leather dressing.
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Mode of access: Internet.
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Spine title (pt. 3): Wool, cotton, silk from fibre to fabric.
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Spine title (pt. 3): Wool, cotton, silk from fibre to fabric.
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Cover title: American cotton-spinner.
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"UIUCDCS-R-74-669"