Unsealed and sealed quartz crystal units used in radio-telephone equipment

Made:
1968
Unsealed and sealed quartz crystal units used in

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Unsealed and sealed quartz crystal units used in
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Unsealed and sealed quartz crystal units used in radio-telephone equipment, 1968

Details

Category:
Glass Technology
Object Number:
1968-257
type:
quartz crystal units
credit:
Mansel (Gt. Britain) Ltd.