Chemical inventions and chemical patents

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100 1 ‡aThomas, Edward, ‡d1877-
245 1 0 ‡aChemical inventions and chemical patents.
260 ‡aAlbany, ‡bM. Bender, ‡c1950.
300 ‡aviii, 881 p. ‡bdiagrs. ‡c24 cm.
500 ‡a"Represents an endeavor...to bring up to date the substance of the authors...Law of chemical patents."
538 ‡aMode of access: Internet.
650 0 ‡aChemicals ‡xPatents.
650 0 ‡aPatent laws and legislation ‡zUnited States.
CID ‡a002009500
DAT 0 ‡a20071024102508.0 ‡b20071024000000.0
DAT 1 ‡a20120815133207.0 ‡b2023-07-13T18:03:22Z
DAT 2 ‡a2023-07-13T17:30:02Z
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