CA483A - Improvements in derricks - Google Patents

Improvements in derricks

Info

Publication number
CA483A
CA483A CA000000483A CA483DA CA483A CA 483 A CA483 A CA 483A CA 000000483 A CA000000483 A CA 000000483A CA 483D A CA483D A CA 483DA CA 483 A CA483 A CA 483A
Authority
CA
Canada
Prior art keywords
derricks
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
CA000000483A
Inventor
D. Arnot
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA483A publication Critical patent/CA483A/en
Expired legal-status Critical Current

Links

CA000000483A Improvements in derricks Expired CA483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA483T

Publications (1)

Publication Number Publication Date
CA483A true CA483A (en) 1870-06-30

Family

ID=45117058

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000000483A Expired CA483A (en) Improvements in derricks

Country Status (1)

Country Link
CA (1) CA483A (en)

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