IT974454B - Valvola di sicurezza subsuperficia le - Google Patents

Valvola di sicurezza subsuperficia le

Info

Publication number
IT974454B
IT974454B IT5520572A IT5520572A IT974454B IT 974454 B IT974454 B IT 974454B IT 5520572 A IT5520572 A IT 5520572A IT 5520572 A IT5520572 A IT 5520572A IT 974454 B IT974454 B IT 974454B
Authority
IT
Italy
Prior art keywords
subsurface
safety valve
safety
valve
valve subsurface
Prior art date
Application number
IT5520572A
Other languages
English (en)
Italian (it)
Original Assignee
Baker Oil Tools Inc
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
Priority claimed from US30348272 external-priority patent/US3850242A/en
Application filed by Baker Oil Tools Inc filed Critical Baker Oil Tools Inc
Application granted granted Critical
Publication of IT974454B publication Critical patent/IT974454B/it

Links

IT5520572A 1972-11-03 1972-12-29 Valvola di sicurezza subsuperficia le IT974454B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30348272 US3850242A (en) 1972-09-05 1972-11-03 Subsurface safety valve

Publications (1)

Publication Number Publication Date
IT974454B true IT974454B (it) 1974-06-20

Family

ID=23172317

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5520572A IT974454B (it) 1972-11-03 1972-12-29 Valvola di sicurezza subsuperficia le

Country Status (3)

Country Link
JP (1) JPS5441004B2 (cs)
CA (1) CA964999A (cs)
IT (1) IT974454B (cs)

Also Published As

Publication number Publication date
JPS4980632A (cs) 1974-08-03
CA964999A (en) 1975-03-25
JPS5441004B2 (cs) 1979-12-06

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