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CA709156A - Automatic screwdown control - Google Patents

Automatic screwdown control

Info

Publication number
CA709156A
CA709156A CA709156A CA709156DA CA709156A CA 709156 A CA709156 A CA 709156A CA 709156 A CA709156 A CA 709156A CA 709156D A CA709156D A CA 709156DA CA 709156 A CA709156 A CA 709156A
Authority
CA
Canada
Prior art keywords
automatic
screwdown control
screwdown
control
automatic screwdown
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
CA709156A
Inventor
A. Wilson Norman
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.)
Siemens Industry Inc
Original Assignee
Morgan Construction Co
Publication date
Application granted granted Critical
Publication of CA709156A publication Critical patent/CA709156A/en
Expired legal-status Critical Current

Links

CA709156A Automatic screwdown control Expired CA709156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA709156T

Publications (1)

Publication Number Publication Date
CA709156A true CA709156A (en) 1965-05-11

Family

ID=36038429

Family Applications (1)

Application Number Title Priority Date Filing Date
CA709156A Expired CA709156A (en) Automatic screwdown control

Country Status (1)

Country Link
CA (1) CA709156A (en)

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