| 摘要 |
PROBLEM TO BE SOLVED: To provide a double-head hammer which simultaneously hits both right and left sides of an object which can not be hit on the center thereof, and generates no tilt. SOLUTION: The double-head hammer is constituted such that a handle of the hammer is divided into two on the way, and the tops of two arms (3) and (4) have heads (1) and (2) respectively, so that the one handle has two heads. COPYRIGHT: (C)2007,JPO&INPIT
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