CA648563A - Passage indicator for pipeline scrapers and the like - Google Patents

Passage indicator for pipeline scrapers and the like

Info

Publication number
CA648563A
CA648563A CA648563A CA648563DA CA648563A CA 648563 A CA648563 A CA 648563A CA 648563 A CA648563 A CA 648563A CA 648563D A CA648563D A CA 648563DA CA 648563 A CA648563 A CA 648563A
Authority
CA
Canada
Prior art keywords
passage indicator
scrapers
pipeline
pipeline scrapers
indicator
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
CA648563A
Inventor
Ver Nooy Burton
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.)
TD Williamson Inc
Original Assignee
TD Williamson Inc
Publication date
Application granted granted Critical
Publication of CA648563A publication Critical patent/CA648563A/en
Expired legal-status Critical Current

Links

CA648563A Passage indicator for pipeline scrapers and the like Expired CA648563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA648563T

Publications (1)

Publication Number Publication Date
CA648563A true CA648563A (en) 1962-09-11

Family

ID=35937209

Family Applications (1)

Application Number Title Priority Date Filing Date
CA648563A Expired CA648563A (en) Passage indicator for pipeline scrapers and the like

Country Status (1)

Country Link
CA (1) CA648563A (en)

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