| 摘要 |
A stapler apparatus having an improved anvil to which staples are applied during a driving operation by a driver member for the apparatus. The anvil is formed with a depression or opening between the clinching grooves and is of size to include the adjacent ends of the grooves. The depression or opening assists in controlling the bonding of the legs of the staple during a stapling operation to prevent re-entry or re-penetration of the legs into a deck of sheets being stapled.
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