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 gazette. Section El, Electrical, and: German patents abstracts. Sections P, Q, El, General/mechanical/electrical, to form: German patents abstracts. Unexamined. PQ, General/mechanical ; German patents abstracts. Unexamined. S-X, Electrical ; German patents abstracts. Examined. P-X, General/mechanical/electrical.
Patents
German patents gazette. Parts I-III complete
German patents gazette. Section El, Electrical
German patents abstracts. Sections P, Q, El, General/mechanical/electrical
German patents abstracts. Unexamined. PQ, General/mechanical
German patents abstracts. Unexamined. S-X, Electrical
German patents abstracts. Examined. P-X, General/mechanical/electrical