The working of astronomical time-service systems by means of accumulators with incandescent lamp rheostat
By: by S. Riefler
Publisher: C. Wolf & Son, printers
Published: 1911
Place of publication: Munich
Language: eng
Subjects: Astronomical clocks; Time; Systems and standards; Electronic clocks and watches; Storage batteries
Other titles: Präzisions-Pendeluhren und Zeitdienstanlagen für Sternwarten.
Notes: Title from cover.

"First supplement to the treatise: Präzisions-Pendeluhren und Zeitdienstanlagen für Sternwarten. Von Dr. S. Riefler ... 1907."