IT1020760B - Binario per servizi pesanti parti colarmente per gru e simili - Google Patents

Binario per servizi pesanti parti colarmente per gru e simili

Info

Publication number
IT1020760B
IT1020760B IT6973574A IT6973574A IT1020760B IT 1020760 B IT1020760 B IT 1020760B IT 6973574 A IT6973574 A IT 6973574A IT 6973574 A IT6973574 A IT 6973574A IT 1020760 B IT1020760 B IT 1020760B
Authority
IT
Italy
Prior art keywords
colarly
cranes
track
similar
parts
Prior art date
Application number
IT6973574A
Other languages
English (en)
Original Assignee
Molyneux G
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 Molyneux G filed Critical Molyneux G
Application granted granted Critical
Publication of IT1020760B publication Critical patent/IT1020760B/it

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
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/448—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency with conversion of a single frequency signal into a digital signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Connection Of Plates (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
IT6973574A 1973-09-11 1974-09-10 Binario per servizi pesanti parti colarmente per gru e simili IT1020760B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4587773A GB1482629A (en) 1973-09-11 1973-09-11 Tone detectors

Publications (1)

Publication Number Publication Date
IT1020760B true IT1020760B (it) 1977-12-30

Family

ID=10438949

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6973574A IT1020760B (it) 1973-09-11 1974-09-10 Binario per servizi pesanti parti colarmente per gru e simili

Country Status (4)

Country Link
BE (1) BE819732A (it)
ES (1) ES429964A1 (it)
GB (1) GB1482629A (it)
IT (1) IT1020760B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164036A (en) * 1977-12-07 1979-08-07 Honeywell Inc. Quadrature correlation phase reversal pulse detector
US4216463A (en) * 1978-08-10 1980-08-05 Motorola, Inc. Programmable digital tone detector
FR2451691A1 (fr) * 1979-03-16 1980-10-10 Thomson Csf Circuit comparateur de frequences et dispositif d'appel selectif comportant un tel circuit
JPS59140739A (ja) * 1983-01-31 1984-08-13 Sony Corp Ａｍステレオ受信機のパイロット信号検出回路
US4698769A (en) * 1985-02-04 1987-10-06 American Telephone And Telegraph Company Supervisory audio tone detection in a radio channel
US4783845A (en) * 1985-12-20 1988-11-08 Itt Aerospace Optical Digital tone squelch detector

Also Published As

Publication number Publication date
ES429964A1 (es) 1976-09-16
GB1482629A (en) 1977-08-10
BE819732A (fr) 1974-12-31

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