German patents abstracts.
Derwent Publications, Ltd.
London : Derwent Publications,
c1977-1988.
Issues also carry dates the abstracts were issued, 12 Jan. 77-12 Oct. 88.
Merged with: German patents gazette. Section Ch, Chemical, to form: German patents abstracts. Examined. A-M, Chemical, and: German patents abstracts. Unexamined. A-M, Chemical.
Patents
Chemicals
German patents abstracts
German patents gazette. Section Ch, Chemical
German patents abstracts. Examined. A-M, Chemical
German patents abstracts. Unexamined. A-M, Chemical