IT7827591A0 - TELEPHONE EQUIPMENT. ALTERNATE CURRENT RINGER FOR - Google Patents

TELEPHONE EQUIPMENT. ALTERNATE CURRENT RINGER FOR

Info

Publication number
IT7827591A0
IT7827591A0 IT7827591A IT2759178A IT7827591A0 IT 7827591 A0 IT7827591 A0 IT 7827591A0 IT 7827591 A IT7827591 A IT 7827591A IT 2759178 A IT2759178 A IT 2759178A IT 7827591 A0 IT7827591 A0 IT 7827591A0
Authority
IT
Italy
Prior art keywords
alternate current
telephone equipment
current ringer
ringer
telephone
Prior art date
Application number
IT7827591A
Other languages
Italian (it)
Other versions
IT1098569B (en
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of IT7827591A0 publication Critical patent/IT7827591A0/en
Application granted granted Critical
Publication of IT1098569B publication Critical patent/IT1098569B/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/062—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated
    • G10K1/063—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated the sounding member being a bell
    • G10K1/064—Operating or striking mechanisms therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromagnets (AREA)
IT27591/78A 1977-09-15 1978-09-13 ALTERNATING CURRENT RINGTONE FOR TELEPHONE DEVICES IT1098569B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772741573 DE2741573A1 (en) 1977-09-15 1977-09-15 AC telephone receiver bell - has pivoting armature with pressed ends to provide small area contact with pole shoes

Publications (2)

Publication Number Publication Date
IT7827591A0 true IT7827591A0 (en) 1978-09-13
IT1098569B IT1098569B (en) 1985-09-07

Family

ID=6019041

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27591/78A IT1098569B (en) 1977-09-15 1978-09-13 ALTERNATING CURRENT RINGTONE FOR TELEPHONE DEVICES

Country Status (4)

Country Link
BR (1) BR7805997A (en)
DE (1) DE2741573A1 (en)
GR (1) GR71731B (en)
IT (1) IT1098569B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949945C2 (en) * 1979-12-12 1982-03-04 Deutsche Fernsprecher Gesellschaft Mbh Marburg, 3550 Marburg Polarized alarm clock

Also Published As

Publication number Publication date
IT1098569B (en) 1985-09-07
GR71731B (en) 1983-06-22
DE2741573A1 (en) 1979-03-29
BR7805997A (en) 1979-04-24

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