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(1 - 3 of 3)
Pumping maple sap from the bucket to the gathering tank
Title
Pumping maple sap from the bucket to the gathering tank
Date Issued
February 1957
Use of vacuum in production of maple sap
Title
Use of vacuum in production of maple sap
Date Issued
February 1971
Using water pumps for gathering maple sap
Title
Using water pumps for gathering maple sap
Date Issued
April 1960