German patents gazette.
Derwent Publications, Ltd.
London : Derwent Publications,
1976-1988.
Issues also carry dates abstracts were issued, 12 Jan. 77-12 Oct. 88.
Merged with: German patents abstracts. 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. Section Ch, Chemical
German patents abstracts. Examined. A-M, Chemical
German patents abstracts. Unexamined. A-M, Chemical