According to 49ers.com, the team signed the final three members of its eight-man practice squad.

From 49ers.com:
The players that signed were DT Damane Duckett, LB Jeremy Mincey and WR Cory Rodgers.

Duckett (6-6, 300) originally signed with Carolina as a rookie free agent out of East Carolina in 2004. He spent part of his rookie season on the Carolina practice squad before joining the New York Giants 53-man roster. Last season he played in eight games as a reserve with the Giants. He was waived by the Giants on the final cutdown.

Mincey (6-3, 260) was originally a sixth-round draft pick by the New England Patriots out of Florida in 2006.

Rodgers (6-0, 186) was originally a fourth-round draft pick by the Green Bay Packers out of Texas Christian in 2006.