The presented exhibit is a timer for irradiation devices. This timer is made for the highest time value of 60 minutes. Unfortunately, the manufacturer of this device could not be found, the production number 46404 is stamped on the back. This timer is described in terms of type in the first edition of the Medical Instruments and Apparatus catalog from 1956 on page 18-03. The exhibit was part of the original equipment of the civil protection warehouse in Pelhřimo
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