GB1340217A - Audio alarm having an electric driving circuit - Google Patents

Audio alarm having an electric driving circuit

Info

Publication number
GB1340217A
GB1340217A GB3094871A GB3094871A GB1340217A GB 1340217 A GB1340217 A GB 1340217A GB 3094871 A GB3094871 A GB 3094871A GB 3094871 A GB3094871 A GB 3094871A GB 1340217 A GB1340217 A GB 1340217A
Authority
GB
United Kingdom
Prior art keywords
rim
membrane
plastics
july
iron
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
GB3094871A
Other languages
English (en)
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.)
Kienzle Uhrenfabriken GmbH
Original Assignee
Kienzle Uhrenfabriken GmbH
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 Kienzle Uhrenfabriken GmbH filed Critical Kienzle Uhrenfabriken GmbH
Publication of GB1340217A publication Critical patent/GB1340217A/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
    • G04C21/02—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
GB3094871A 1970-07-03 1971-07-01 Audio alarm having an electric driving circuit Expired GB1340217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702032923 DE2032923A1 (de) 1970-07-03 1970-07-03 Summer mit elektronischer Antriebsschaltung

Publications (1)

Publication Number Publication Date
GB1340217A true GB1340217A (en) 1973-12-12

Family

ID=5775657

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3094871A Expired GB1340217A (en) 1970-07-03 1971-07-01 Audio alarm having an electric driving circuit

Country Status (3)

Country Link
DE (1) DE2032923A1 (enExample)
FR (1) FR2100176A5 (enExample)
GB (1) GB1340217A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113050401A (zh) * 2019-12-11 2021-06-29 斯沃奇集团研究和开发有限公司 用于表壳中的声辐射膜的保持和振动传递装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113050401A (zh) * 2019-12-11 2021-06-29 斯沃奇集团研究和开发有限公司 用于表壳中的声辐射膜的保持和振动传递装置
CN113050401B (zh) * 2019-12-11 2023-01-13 斯沃奇集团研究和开发有限公司 用于表壳中的声辐射膜的保持和振动传递装置

Also Published As

Publication number Publication date
FR2100176A5 (enExample) 1972-03-17
DE2032923A1 (de) 1972-01-05

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees