G
PHYSICS
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G11
INFORMATION STORAGE
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G11C
STATIC STORES
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17/00
Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
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G11C17/08
using semiconductor devices, e.g. bipolar elements
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G11C17/10
in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM
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