Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
F16K13/04—Other constructional types of cut-off apparatus; Arrangements for cutting-off with a breakable closure member
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Filling Or Discharging Of Gas Storage Vessels
(AREA)
Trade and Politics in the Niger Delta, 1830–1885; An Introduction to the Economic and Political History of Nigeria. By K. Onwuka Dike.(“Oxford Studies in African Affairs.”) Oxford: Clarendon Press, 1956. Pp. vii, 250. $4.80.