FR677768A - Ringing device for alarm clocks - Google Patents

Ringing device for alarm clocks

Info

Publication number
FR677768A
FR677768A FR677768DA FR677768A FR 677768 A FR677768 A FR 677768A FR 677768D A FR677768D A FR 677768DA FR 677768 A FR677768 A FR 677768A
Authority
FR
France
Prior art keywords
alarm clocks
ringing device
ringing
clocks
alarm
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MANUF HORLOGERIE BETHUNE
Original Assignee
MANUF HORLOGERIE BETHUNE
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 MANUF HORLOGERIE BETHUNE filed Critical MANUF HORLOGERIE BETHUNE
Application granted granted Critical
Publication of FR677768A publication Critical patent/FR677768A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/03—Alarm signal stop arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
FR677768D 1929-07-03 1929-07-03 Ringing device for alarm clocks Expired FR677768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR677768T 1929-07-03

Publications (1)

Publication Number Publication Date
FR677768A true FR677768A (en) 1930-03-14

Family

ID=9020656

Family Applications (1)

Application Number Title Priority Date Filing Date
FR677768D Expired FR677768A (en) 1929-07-03 1929-07-03 Ringing device for alarm clocks

Country Status (1)

Country Link
FR (1) FR677768A (en)

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