CH405A - New pipeline system for establishing underground telegraph lines - Google Patents

New pipeline system for establishing underground telegraph lines

Info

Publication number
CH405A
CH405A CH405A CH405DA CH405A CH 405 A CH405 A CH 405A CH 405 A CH405 A CH 405A CH 405D A CH405D A CH 405DA CH 405 A CH405 A CH 405A
Authority
CH
Switzerland
Prior art keywords
pipeline system
new pipeline
telegraph lines
establishing underground
establishing
Prior art date
Application number
CH405A
Other languages
French (fr)
Inventor
Cie Delune
Original Assignee
Delune & Cie
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 Delune & Cie filed Critical Delune & Cie
Publication of CH405A publication Critical patent/CH405A/en

Links

CH405A 1889-02-05 1889-02-05 New pipeline system for establishing underground telegraph lines CH405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH405T 1889-02-05

Publications (1)

Publication Number Publication Date
CH405A true CH405A (en) 1889-03-23

Family

ID=4177957

Family Applications (1)

Application Number Title Priority Date Filing Date
CH405A CH405A (en) 1889-02-05 1889-02-05 New pipeline system for establishing underground telegraph lines

Country Status (1)

Country Link
CH (1) CH405A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473909A (en) * 1939-06-30 1949-06-21 Henri Besson Duct element, intended in particular for laying electric cables

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473909A (en) * 1939-06-30 1949-06-21 Henri Besson Duct element, intended in particular for laying electric cables

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