GLASS ENCAPSULATED ELECTRONIC DEVICES

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group consisting of zinc oxide and cadmia. .... The choice 'of glass and speci?c glass composition for .... cadmia, to which both alumina and silica are added in.
July 9, 1968

J. N. CARMAN

3,392,312

GLASS ENCAPSULATED ELECTRONIC DEVICES

Filed May 1'7, 196;":

5 Sheets-Sheet 2

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