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- Google Patents
AU295825B2 - Improvements in or relating to heater bodies for use in indirectly heated cathodes, these bodies being coated with a layer preferably consisting of pure alumina and with a dare-coloured layer consisting of a mixture of metal oxide particles and particles of darker colour
- Google Patents
Improvements in or relating to heater bodies for use in indirectly heated cathodes, these bodies being coated with a layer preferably consisting of pure alumina and with a dare-coloured layer consisting of a mixture of metal oxide particles and particles of darker colour
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.)
ADRIANUS KUIPER and CORNELIS MAKO FREDRICK HERMANN RAYMOND ALMER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Application grantedgrantedCritical
Publication of AU295825B2publicationCriticalpatent/AU295825B2/en
Publication of AU1129166ApublicationCriticalpatent/AU1129166A/en
AU11291/66A1965-09-231966-09-20Improvements in or relating to heater bodies for use in indirectly heated cathodes, these bodies being coated with a layer preferably consisting of pure alumina and with a dare-coloured layer consisting of a mixture of metal oxide particles and particles of darker colour
ExpiredAU295825B2
(en)
Improvements in or relating to heater bodies for use in indirectly heated cathodes, these bodies being coated with a layer preferably consisting of pure alumina and with a dare-coloured layer consisting of a mixture of metal oxide particles and particles of darker colour
Improvements in or relating to heater bodies for use in indirectly heated cathodes, these bodies being coated with a layer preferably consisting of pure alumina and with a dare-coloured layer consisting of a mixture of metal oxide particles and particles of darker colour
Improvements in or relating to heater bodies for use in indirectly heated cathodes coated witha layer preferably consisting of pure alumina and witha dark-coloured layer consisting ofa mixture of metal oxide particles and particles of darker colour
Improvements in or relating to heater bodies for use in indirectly heated cathodes coated witha layer preferably consisting of pure alumina and witha dark-coloured layer consisting ofa mixture of metal oxide particles and particles of darker colour