The invention concerns a pair of reducer pliers comprising a fixed arm (10), a mobile actuating arm (14), which is articulated (16) on the fixed arm (10) and a mobile support arm (18) likewise articulated on the fixed arm.

The fixed jaw (3) is mounted on the end of the fixed arm (1).

The removable arm can be temporarily and securely attached to the fixed arm.

The connection pins consist of a fixed leg which at one end is immovably connected to the contact element and a free leg running at right angles to the fixed leg.

The adjustable multiple light beam generator includes a fixed arm and an adjustable arm.

The guide comprises a shaft, a stationary first arm, and at least one movable second arm.

A second arm is rotatably mounted to the stationary arm and a plug is secured to the free end of the second arm.

Also disposed in the vacuum chamber is a fixed arm.

Two ends of the supporting seat are respectively provided with a swinging arm (102) and a fixed arm (109).

The second arm has a position of repose where it is angled relative to the stationary arm.

The tool has a fixed arm (1) and a mobile arm (2) hingedly connected by one of their ends.

A movable arm (23), similar in configuration to the stationary arm, is attached to the lifting rack.

One or two of these arms (3, 11) are movable and such a movable arm (3) cooperates with one fixed (11, 14) and/or one movable arm (11).

A rock drill telescopic arm comprises a fixed arm (1), a movable arm (3), and a telescopic oil cylinder (2).

The movable arm is movable relative to the stationary arm to retract, and lift the patient's ribs.