| Thursday, October 1st, 1964 | Activated SP Oliver Delgado from the disabled list. | Saturday, September 19th, 1964 | Placed MR Keith Thompson on the 60-day disabled list. | Saturday, September 5th, 1964 | Activated SS Gene Roberson from the 60-day disabled list. | MR Raúl Molina was designated for assignment, placed on waivers and taken off the 40-man roster. | Tuesday, August 11th, 1964 | Signed Gabriel Salazar to a minor league contract with a signing bonus of $16,300. | Signed Vasilii Babakaev to a minor league contract with a signing bonus of $12,000. | Tuesday, August 4th, 1964 | Placed C Chris Ward on the 13-day disabled list. | Purchased the contract of C Bill Miller from Triple A Guelph. | Monday, August 3rd, 1964 | Signed Mike Piper to a minor league contract with a signing bonus of $22,200. | Wednesday, July 15th, 1964 | Signed John Poole to a minor league contract with a signing bonus of $7,900. | Thursday, May 7th, 1964 | Placed SS Gene Roberson on the 60-day disabled list. | |
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