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(1 - 6 of 6)

Title: Effect of high-vacuum pumping on volume yields and composition of maple sap
Date Issued: March 1971

Title: Installing plastic tubing
Date Issued: August 1971

Title: Pumping maple sap from the bucket to the gathering tank
Date Issued: February 1957

Title: Studies on pipeline systems for gathering maple sap
Date Issued: January 1962

Title: Use of vacuum in production of maple sap
Date Issued: February 1971

Title: Using water pumps for gathering maple sap
Date Issued: April 1960