NL146354B - PUSH-BUTTON DIALER FOR A TELEPHONE SYSTEM. - Google Patents

PUSH-BUTTON DIALER FOR A TELEPHONE SYSTEM.

Info

Publication number
NL146354B
NL146354B NL6806814A NL6806814A NL146354B NL 146354 B NL146354 B NL 146354B NL 6806814 A NL6806814 A NL 6806814A NL 6806814 A NL6806814 A NL 6806814A NL 146354 B NL146354 B NL 146354B
Authority
NL
Netherlands
Prior art keywords
push
telephone system
button dialer
dialer
button
Prior art date
Application number
NL6806814A
Other languages
Dutch (nl)
Other versions
NL6806814A (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 NL6806814A publication Critical patent/NL6806814A/xx
Publication of NL146354B publication Critical patent/NL146354B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/677—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
NL6806814A 1967-05-31 1968-05-14 PUSH-BUTTON DIALER FOR A TELEPHONE SYSTEM. NL146354B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1967S0110093 DE1293864B (en) 1967-05-31 1967-05-31 Dial keypad with remote dial lock

Publications (2)

Publication Number Publication Date
NL6806814A NL6806814A (en) 1968-12-02
NL146354B true NL146354B (en) 1975-06-16

Family

ID=7529973

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6806814A NL146354B (en) 1967-05-31 1968-05-14 PUSH-BUTTON DIALER FOR A TELEPHONE SYSTEM.

Country Status (5)

Country Link
BE (1) BE715970A (en)
DE (1) DE1293864B (en)
GB (1) GB1182569A (en)
NL (1) NL146354B (en)
SE (1) SE328028B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2285765A1 (en) * 1974-09-17 1976-04-16 Picart Lebas Telephones Telephone locking system for restricting calling ability - has key operated mechanism to limit dial or pushbutton selection
DE2648679C2 (en) * 1976-10-27 1978-11-16 Elmeg-Elektro-Mechanik Gmbh, 3150 Peine Dial pad with first digit lock
DE2755699C2 (en) * 1977-12-14 1984-09-27 Friedrich Merk-Telefonbau GmbH, 8000 München Padlock combined with a charge meter for telecommunication devices, especially telephone devices

Also Published As

Publication number Publication date
BE715970A (en) 1968-12-02
DE1293864B (en) 1969-04-30
NL6806814A (en) 1968-12-02
SE328028B (en) 1970-09-07
GB1182569A (en) 1970-02-25

Similar Documents

Publication Publication Date Title
NL145429B (en) SEARCH SYSTEM FOR MOBILE TELEPHONE SUBSCRIBERS.
NL161223C (en) PRE-MANUFACTURED SPACE ELEMENT FOR A BUILDING.
NL144099B (en) INTERRUPTION SYSTEM FOR AN AUTOMATIC TELEPHONE EXCHANGE
NL158750B (en) LOCKING DEVICE FOR A WRAPPING PLANO.
NL152161B (en) BALANCING DEVICE FOR A DRAWING TABLE.
ES150231Y (en) A FILTERING DEVICE.
NL141057B (en) KEY DIAL DEVICE FOR A TELECOMMUNICATION DEVICE.
ES149979Y (en) A CONSTRUCTION BLOCK.
NL161029C (en) LOCK-FREE SWITCHING DEVICE FOR A TIME MULTIPLEX COMMUNICATION SYSTEM.
NL150567B (en) LEIBUS FOR A VALVE.
NL146354B (en) PUSH-BUTTON DIALER FOR A TELEPHONE SYSTEM.
NL148476B (en) DISTRIBUTOR FOR A TELEPHONE AND TELECOMMUNICATIONS CENTER.
NL142859B (en) SWITCHING DEVICE FOR A TIME MULTIPLEX HOME PHONE SYSTEM.
NL165629C (en) TELEPHONE.
NL142558B (en) CIRCUIT FOR A TELECOMMUNICATIONS CONNECTION SYSTEM.
ES141320Y (en) A CONTAINER-HOLDER.
NL146762B (en) DRAIN DEVICE FOR A SILOCELL.
NL143785B (en) CIRCUIT FOR A TIME MULTIPLEX PHONE SYSTEM
NL151239B (en) CIRCUIT FOR A TELECOMMUNICATIONS SYSTEM.
NL145737B (en) CIRCUIT FOR A TELEPHONE STATION WITH A KEYBOARD.
NL165632C (en) SEARCH SWITCH FOR A TELECOMMUNICATIONS SWITCH SYSTEM.
ES128770Y (en) A PERFECTED DIALER FOR PHONES.
ES142006Y (en) A SEAT.
NL154898B (en) AUTOMATIC ALARM DEVICE FOR AN AUTOMATIC TELEPHONE SYSTEM.
NL147908B (en) SWITCH DEVICE FOR A VOICE CONTROLLED SPEAKING TELEPHONE DEVICE.