CA869373A - Extensible and retractible boom construction for cranes - Google Patents

Extensible and retractible boom construction for cranes

Info

Publication number
CA869373A
CA869373A CA869373A CA869373DA CA869373A CA 869373 A CA869373 A CA 869373A CA 869373 A CA869373 A CA 869373A CA 869373D A CA869373D A CA 869373DA CA 869373 A CA869373 A CA 869373A
Authority
CA
Canada
Prior art keywords
retractible
cranes
extensible
boom construction
boom
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
CA869373A
Inventor
E. Stauffer Robert
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.)
Jeffrey Galion Inc
Original Assignee
Jeffrey Galion Inc
Publication date
Application granted granted Critical
Publication of CA869373A publication Critical patent/CA869373A/en
Expired legal-status Critical Current

Links

CA869373A Extensible and retractible boom construction for cranes Expired CA869373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA869373T

Publications (1)

Publication Number Publication Date
CA869373A true CA869373A (en) 1971-04-27

Family

ID=36355441

Family Applications (1)

Application Number Title Priority Date Filing Date
CA869373A Expired CA869373A (en) Extensible and retractible boom construction for cranes

Country Status (1)

Country Link
CA (1) CA869373A (en)

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