Derwent Japanese patents report.
Derwent Publications, Ltd.
London : Derwent Publications,
-1976.
Includes patents granted prior to issuing date.
Description based on: Vol. 3, no. 1 (13th Feb. 1964).
Not published: Week R1 ; week R2.
Patents
Japanese patents report. Part I, Chemical
Japanese patents report. Part II, Mechanical & general
Japanese patents report. Part III, Electrical