Priority date (The priority date 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 date listed.)
Publication of NL24431CpublicationCriticalpatent/NL24431C/xx
H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
H01J9/02—Manufacture of electrodes or electrode systems
H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
H01J9/042—Manufacture, activation of the emissive part
B—PERFORMING OPERATIONS; TRANSPORTING
B64—AIRCRAFT; AVIATION; COSMONAUTICS
B64C—AEROPLANES; HELICOPTERS
B64C25/00—Alighting gear
B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
B64C25/38—Alighting gear characterised by elements which contact the ground or similar surface endless-track type
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Engineering & Computer Science
(AREA)
Mechanical Engineering
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Aviation & Aerospace Engineering
(AREA)
Manufacturing & Machinery
(AREA)
Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like
(AREA)