CA140291A - Grattoir de tubes - Google Patents

Grattoir de tubes

Info

Publication number
CA140291A
CA140291A CA000140291A CA140291DA CA140291A CA 140291 A CA140291 A CA 140291A CA 000140291 A CA000140291 A CA 000140291A CA 140291D A CA140291D A CA 140291DA CA 140291 A CA140291 A CA 140291A
Authority
CA
Canada
Prior art keywords
tube scraper
scraper
tube
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
CA000140291A
Other languages
English (en)
Inventor
Martin J. Thorsen
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA140291A publication Critical patent/CA140291A/fr
Expired legal-status Critical Current

Links

CA000140291A 1912-01-08 1912-01-08 Grattoir de tubes Expired CA140291A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA140291T 1912-01-08

Publications (1)

Publication Number Publication Date
CA140291A true CA140291A (fr) 1912-05-07

Family

ID=45260007

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000140291A Expired CA140291A (fr) 1912-01-08 1912-01-08 Grattoir de tubes

Country Status (1)

Country Link
CA (1) CA140291A (fr)

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