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cesium beam atomic clock, electronic unit

cesium beam atomic clock, electronic unit

National Company, Inc.
circa 1960
cesium beam for cesium beam atomic clock

cesium beam for cesium beam atomic clock

National Company, Inc.
circa 1960
H-10 atomic hydrogen maser

H-10 atomic hydrogen maser

Hewlett-Packard Company
circa 1965
transistorized cesium beam atomic clock

transistorized cesium beam atomic clock

National Company, Inc.
1970
/ 1

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The Collection of Historical Scientific Instruments
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