NL30169C - - Google Patents

Info

Publication number
NL30169C
NL30169C NL30169DA NL30169C NL 30169 C NL30169 C NL 30169C NL 30169D A NL30169D A NL 30169DA NL 30169 C NL30169 C NL 30169C
Authority
NL
Netherlands
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 NL30169C publication Critical patent/NL30169C/xx
Priority claimed from US457358A external-priority patent/US1822635A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2607—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Supply Of Signal Current (AREA)
NL30169D 1926-04-24 NL30169C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PL1864381X 1926-04-24
US172490A US1864381A (en) 1926-04-24 1927-03-03 Circuit arrangement for sending of current impulses over telephone lines
US457358A US1822635A (en) 1927-03-03 1930-05-29 Circuit arrangement for the sending of current impulses over telephone lines

Publications (1)

Publication Number Publication Date
NL30169C true NL30169C (fr)

Family

ID=27354042

Family Applications (1)

Application Number Title Priority Date Filing Date
NL30169D NL30169C (fr) 1926-04-24

Country Status (3)

Country Link
US (1) US1864381A (fr)
BE (1) BE343824A (fr)
NL (1) NL30169C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535872A (en) * 1947-04-25 1950-12-26 American Telephone & Telegraph Signaling system

Also Published As

Publication number Publication date
US1864381A (en) 1932-06-21
BE343824A (fr)

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