BE392795A - - Google Patents

Info

Publication number
BE392795A
BE392795A BE392795DA BE392795A BE 392795 A BE392795 A BE 392795A BE 392795D A BE392795D A BE 392795DA BE 392795 A BE392795 A BE 392795A
Authority
BE
Belgium
Prior art keywords
switch
door
safety
cord
electro
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE392795A publication Critical patent/BE392795A/fr

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K3/00Rattles or like noise-producing devices, e.g. door-knockers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Emergency Alarm Devices (AREA)
  • Burglar Alarm Systems (AREA)
BE392795D BE392795A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
BE392795A true BE392795A (enrdf_load_stackoverflow)

Family

ID=60353

Family Applications (1)

Application Number Title Priority Date Filing Date
BE392795D BE392795A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
BE (1) BE392795A (enrdf_load_stackoverflow)

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