FR328863A - Electric warning clock - Google Patents

Electric warning clock

Info

Publication number
FR328863A
FR328863A FR328863DA FR328863A FR 328863 A FR328863 A FR 328863A FR 328863D A FR328863D A FR 328863DA FR 328863 A FR328863 A FR 328863A
Authority
FR
France
Prior art keywords
electric warning
warning clock
clock
electric
warning
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.)
RAISON SOCIALE AMERICAN REMINDER CLOCK CY
Original Assignee
RAISON SOCIALE AMERICAN REMINDER CLOCK CY
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 RAISON SOCIALE AMERICAN REMINDER CLOCK CY filed Critical RAISON SOCIALE AMERICAN REMINDER CLOCK CY
Application granted granted Critical
Publication of FR328863A publication Critical patent/FR328863A/en
Expired legal-status Critical Current

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
    • G04C21/305—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 by the hand(s) or handlike members closing the contacts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR328863D 1903-01-13 1903-01-13 Electric warning clock Expired FR328863A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR328863T 1903-01-13

Publications (1)

Publication Number Publication Date
FR328863A true FR328863A (en) 1903-07-21

Family

ID=1378734

Family Applications (1)

Application Number Title Priority Date Filing Date
FR328863D Expired FR328863A (en) 1903-01-13 1903-01-13 Electric warning clock

Country Status (1)

Country Link
FR (1) FR328863A (en)

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