BE476996A - - Google Patents

Info

Publication number
BE476996A
BE476996A BE476996DA BE476996A BE 476996 A BE476996 A BE 476996A BE 476996D A BE476996D A BE 476996DA BE 476996 A BE476996 A BE 476996A
Authority
BE
Belgium
Application number
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.)
Publication of BE476996A publication Critical patent/BE476996A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part
    • Y10T29/49922—Overedge assembling of seated part by bending over projecting prongs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
BE476996D 1946-10-30 BE476996A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US706608A US2448647A (en) 1946-10-30 1946-10-30 Calling device

Publications (1)

Publication Number Publication Date
BE476996A true BE476996A (enrdf_load_stackoverflow)

Family

ID=24838325

Family Applications (1)

Application Number Title Priority Date Filing Date
BE476996D BE476996A (enrdf_load_stackoverflow) 1946-10-30

Country Status (3)

Country Link
US (1) US2448647A (enrdf_load_stackoverflow)
BE (1) BE476996A (enrdf_load_stackoverflow)
FR (1) FR954562A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563581A (en) * 1951-08-07 Finger-wheel operated call trans

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1360113A (en) * 1920-11-23 kaisling
US1642822A (en) * 1924-05-15 1927-09-20 Automatic Electric Inc Calling device
US1954515A (en) * 1931-12-03 1934-04-10 Adolph I Blanc Microphone casing

Also Published As

Publication number Publication date
FR954562A (enrdf_load_stackoverflow) 1950-01-03
US2448647A (en) 1948-09-07

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