IT1229446B - PROCEDURE AND EQUIPMENT PERFECTED FOR THE DIRECT TRANSMISSION OF CODED SIGNALS THROUGH AN UNDERGROUND METAL TUBE. - Google Patents

PROCEDURE AND EQUIPMENT PERFECTED FOR THE DIRECT TRANSMISSION OF CODED SIGNALS THROUGH AN UNDERGROUND METAL TUBE.

Info

Publication number
IT1229446B
IT1229446B IT8920787A IT2078789A IT1229446B IT 1229446 B IT1229446 B IT 1229446B IT 8920787 A IT8920787 A IT 8920787A IT 2078789 A IT2078789 A IT 2078789A IT 1229446 B IT1229446 B IT 1229446B
Authority
IT
Italy
Prior art keywords
perfected
procedure
equipment
metal tube
direct transmission
Prior art date
Application number
IT8920787A
Other languages
Italian (it)
Other versions
IT8920787A0 (en
Inventor
Vittorio Ponzio
Original Assignee
Sacofgas Spa
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 Sacofgas Spa filed Critical Sacofgas Spa
Priority to IT8920787A priority Critical patent/IT1229446B/en
Publication of IT8920787A0 publication Critical patent/IT8920787A0/en
Application granted granted Critical
Publication of IT1229446B publication Critical patent/IT1229446B/en

Links

IT8920787A 1989-06-05 1989-06-05 PROCEDURE AND EQUIPMENT PERFECTED FOR THE DIRECT TRANSMISSION OF CODED SIGNALS THROUGH AN UNDERGROUND METAL TUBE. IT1229446B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT8920787A IT1229446B (en) 1989-06-05 1989-06-05 PROCEDURE AND EQUIPMENT PERFECTED FOR THE DIRECT TRANSMISSION OF CODED SIGNALS THROUGH AN UNDERGROUND METAL TUBE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8920787A IT1229446B (en) 1989-06-05 1989-06-05 PROCEDURE AND EQUIPMENT PERFECTED FOR THE DIRECT TRANSMISSION OF CODED SIGNALS THROUGH AN UNDERGROUND METAL TUBE.

Publications (2)

Publication Number Publication Date
IT8920787A0 IT8920787A0 (en) 1989-06-05
IT1229446B true IT1229446B (en) 1991-08-08

Family

ID=11172068

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8920787A IT1229446B (en) 1989-06-05 1989-06-05 PROCEDURE AND EQUIPMENT PERFECTED FOR THE DIRECT TRANSMISSION OF CODED SIGNALS THROUGH AN UNDERGROUND METAL TUBE.

Country Status (1)

Country Link
IT (1) IT1229446B (en)

Also Published As

Publication number Publication date
IT8920787A0 (en) 1989-06-05

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Effective date: 19970530