DE128209C - - Google Patents

Info

Publication number
DE128209C
DE128209C DENDAT128209D DE128209DA DE128209C DE 128209 C DE128209 C DE 128209C DE NDAT128209 D DENDAT128209 D DE NDAT128209D DE 128209D A DE128209D A DE 128209DA DE 128209 C DE128209 C DE 128209C
Authority
DE
Germany
Prior art keywords
bed
knocking
wake
noise
expediently
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.)
Active
Application number
DENDAT128209D
Other languages
German (de)
English (en)
Publication of DE128209C publication Critical patent/DE128209C/de
Active legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Percussion Or Vibration Massage (AREA)
DENDAT128209D Active DE128209C (Direct)

Publications (1)

Publication Number Publication Date
DE128209C true DE128209C (Direct)

Family

ID=396754

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT128209D Active DE128209C (Direct)

Country Status (1)

Country Link
DE (1) DE128209C (Direct)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553138A (en) * 1981-09-28 1985-11-12 Yoshitaka Nakanishi Fire alarm system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553138A (en) * 1981-09-28 1985-11-12 Yoshitaka Nakanishi Fire alarm system

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