CA48005A - Drain grading instrument - Google Patents

Drain grading instrument

Info

Publication number
CA48005A
CA48005A CA000048005A CA48005DA CA48005A CA 48005 A CA48005 A CA 48005A CA 000048005 A CA000048005 A CA 000048005A CA 48005D A CA48005D A CA 48005DA CA 48005 A CA48005 A CA 48005A
Authority
CA
Canada
Prior art keywords
drain
grading instrument
grading
instrument
drain grading
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
CA000048005A
Other languages
French (fr)
Inventor
Allan Ross Davis
John N. Bogart
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 CA48005A publication Critical patent/CA48005A/en
Expired legal-status Critical Current

Links

CA000048005A Drain grading instrument Expired CA48005A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA48005T

Publications (1)

Publication Number Publication Date
CA48005A true CA48005A (en) 1895-01-24

Family

ID=45164545

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000048005A Expired CA48005A (en) Drain grading instrument

Country Status (1)

Country Link
CA (1) CA48005A (en)

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