CA559809A - Powered valve operator - Google Patents

Powered valve operator

Info

Publication number
CA559809A
CA559809A CA559809A CA559809DA CA559809A CA 559809 A CA559809 A CA 559809A CA 559809 A CA559809 A CA 559809A CA 559809D A CA559809D A CA 559809DA CA 559809 A CA559809 A CA 559809A
Authority
CA
Canada
Prior art keywords
valve operator
powered valve
powered
operator
valve
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA559809A
Other languages
French (fr)
Inventor
Lamb John
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell Development Co
Original Assignee
Shell Development Co
Publication date
Application granted granted Critical
Publication of CA559809A publication Critical patent/CA559809A/en
Expired legal-status Critical Current

Links

CA559809A Powered valve operator Expired CA559809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA559809T

Publications (1)

Publication Number Publication Date
CA559809A true CA559809A (en) 1958-07-01

Family

ID=35726225

Family Applications (1)

Application Number Title Priority Date Filing Date
CA559809A Expired CA559809A (en) Powered valve operator

Country Status (1)

Country Link
CA (1) CA559809A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998733A (en) * 1959-06-02 1961-09-05 Kenneth W Thompson Control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998733A (en) * 1959-06-02 1961-09-05 Kenneth W Thompson Control device

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