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1.
The crystal clock / by W.A. Marrison, Bell Telephone Laboratories, New York City. by Series: Bell Telephone System. Technical publications, August, 1930 ; Monograph B-505
Material type: Text Text; Format: print ; Literary form: Not fiction
Publisher: [New York] : [Bell Telephone System], [1930]
Availability: Items available for loan: Jost Bürgi Library (1)Call number: QB107 .M37 1930.
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2.
The time-service system at the provisional observatory of the German Museum in Munich / by S. Riefler. by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publisher: Munich : C. Wolf and Son, printers, 1911
Availability: Items available for loan: Jost Bürgi Library (1)Call number: QB107 .R54 1911.
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3.
The working of astronomical time-service systems by means of accumulators with incandescent lamp rheostat / by S. Riefler. by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publisher: Munich : C. Wolf and Son, printers, 1911
Availability: Items available for loan: Jost Bürgi Library (1)Call number: QB107 .R54 1911.
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