Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/02—Constructional features of telephone sets
  • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J5/00—Devices or arrangements for controlling character selection
  • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J5/00—Devices or arrangements for controlling character selection
  • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
  • B41J5/12—Construction of key buttons
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01G—WEIGHING
  • G01G23/00—Auxiliary devices for weighing apparatus
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
  • G06C7/00—Input mechanisms
  • G06C7/02—Keyboards
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
  • H01H13/02—Details
  • H01H13/023—Light-emitting indicators
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
  • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T74/00—Machine element or mechanism
  • Y10T74/20—Control lever and linkage systems
  • Y10T74/20396—Hand operated
  • Y10T74/20468—Sliding rod

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Signal Processing (AREA)
• Computer Hardware Design (AREA)
• Computing Systems (AREA)
• Theoretical Computer Science (AREA)
• Push-Button Switches (AREA)
• Input From Keyboards Or The Like (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=4209712

Family Applications (1)

Country Status (7)

Families Citing this family (10)

Family Cites Families (9)

• 1966
  • 1966-01-31 CH CH140766A patent/CH450461A/en unknown
  • 1966-12-20 US US603308A patent/US3387693A/en not_active Expired - Lifetime
  • 1966-12-23 AT AT1184966A patent/AT267212B/en active
  • 1966-12-23 FR FR88646A patent/FR1506033A/en not_active Expired
• 1967
  • 1967-01-12 NL NL6700483A patent/NL6700483A/xx unknown
  • 1967-01-13 GB GB0847/67A patent/GB1169457A/en not_active Expired
  • 1967-01-26 DE DE19671547547 patent/DE1547547B2/en not_active Withdrawn

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