DE180955C - - Google Patents

Info

Publication number
DE180955C
DE180955C DENDAT180955D DE180955DA DE180955C DE 180955 C DE180955 C DE 180955C DE NDAT180955 D DENDAT180955 D DE NDAT180955D DE 180955D A DE180955D A DE 180955DA DE 180955 C DE180955 C DE 180955C
Authority
DE
Germany
Prior art keywords
bellows
housing
sound
plate
footboard
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
DENDAT180955D
Other languages
German (de)
English (en)
Publication of DE180955C publication Critical patent/DE180955C/de
Active legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00Audible signalling systems; Audible personal calling systems
    • G08B3/06Audible signalling systems; Audible personal calling systems using hydraulic transmission; using pneumatic transmission

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cleaning In General (AREA)
DENDAT180955D Active DE180955C (cs)

Publications (1)

Publication Number Publication Date
DE180955C true DE180955C (cs)

Family

ID=445175

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT180955D Active DE180955C (cs)

Country Status (1)

Country Link
DE (1) DE180955C (cs)

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