University of Illinois Urbana-Champaign

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Showing 1801–1830 of 10,249 items
Thumbnail for Heat drying coals at moderate temperatures before coking
Heat drying coals at moderate temperatures before coking
Jackman, Harold Wesley; Helfinstine, Roy John

Thumbnail for Improvements in Recordkeeping and Use
Improvements in Recordkeeping and Use
Beatty, William K.; Beatty, Virginia L.

Thumbnail for Table of Contents
Table of Contents
Submitter: Howard Ding