| http://www.w3.org/ns/prov#value | - Trigger 401 can be made of any suitable material, and may include a metal, plastic, or other rigid or semi-rigid material which may be inserted into hole 130 and used to counteract the biasing force of trigger spring 402 and to force trip pin 427 to release the energy stored in pusher spring 425 (FIG. 7).
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