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AT169309B - Preregistration clock - Google Patents

Preregistration clock

Info

Publication number
AT169309B
AT169309B AT169309DA AT169309B AT 169309 B AT169309 B AT 169309B AT 169309D A AT169309D A AT 169309DA AT 169309 B AT169309 B AT 169309B
Authority
AT
Austria
Prior art keywords
preregistration
clock
preregistration clock
Prior art date
Application number
Other languages
German (de)
Inventor
Gustav Mayer
Original Assignee
Gustav Mayer
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gustav Mayer filed Critical Gustav Mayer
Application granted granted Critical
Publication of AT169309B publication Critical patent/AT169309B/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
    • G04C21/30—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times with provision for a number of operations at different times, e.g. ringing the bells in a school

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
AT169309D 1950-07-03 1950-07-03 Preregistration clock AT169309B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT169309T 1950-07-03

Publications (1)

Publication Number Publication Date
AT169309B true AT169309B (en) 1951-11-10

Family

ID=3655065

Family Applications (1)

Application Number Title Priority Date Filing Date
AT169309D AT169309B (en) 1950-07-03 1950-07-03 Preregistration clock

Country Status (1)

Country Link
AT (1) AT169309B (en)

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