NL8258C - Electrisch wektoestel met geluid en lichtalarm - Google Patents

Electrisch wektoestel met geluid en lichtalarm

Info

Publication number
NL8258C
NL8258C NL17965A NL17965A NL8258C NL 8258 C NL8258 C NL 8258C NL 17965 A NL17965 A NL 17965A NL 17965 A NL17965 A NL 17965A NL 8258 C NL8258 C NL 8258C
Authority
NL
Netherlands
Prior art keywords
alarm
sound
electrical
light
alarm device
Prior art date
Application number
NL17965A
Other languages
English (en)
Inventor
Haak Cornelis Henderikus Ter
Original Assignee
Haak Cornelis Henderikus Ter
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 Haak Cornelis Henderikus Ter filed Critical Haak Cornelis Henderikus Ter
Priority to NL17965A priority Critical patent/NL8258C/nl
Application granted granted Critical
Publication of NL8258C publication Critical patent/NL8258C/nl

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
    • G04C21/20—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm
    • G04C21/24—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm put into action by the spring of a mechanical alarm work

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
NL17965A 1921-02-07 1921-02-07 Electrisch wektoestel met geluid en lichtalarm NL8258C (nl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL17965A NL8258C (nl) 1921-02-07 1921-02-07 Electrisch wektoestel met geluid en lichtalarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL17965A NL8258C (nl) 1921-02-07 1921-02-07 Electrisch wektoestel met geluid en lichtalarm

Publications (1)

Publication Number Publication Date
NL8258C true NL8258C (nl) 1923-02-15

Family

ID=1777945

Family Applications (1)

Application Number Title Priority Date Filing Date
NL17965A NL8258C (nl) 1921-02-07 1921-02-07 Electrisch wektoestel met geluid en lichtalarm

Country Status (1)

Country Link
NL (1) NL8258C (nl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444748A (en) * 1945-08-28 1948-07-06 Anthony J Parissi Clock with visible and audible alarm means
US2539138A (en) * 1947-04-19 1951-01-23 Casco Products Corp Cyclometer clock alarm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444748A (en) * 1945-08-28 1948-07-06 Anthony J Parissi Clock with visible and audible alarm means
US2539138A (en) * 1947-04-19 1951-01-23 Casco Products Corp Cyclometer clock alarm

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