(under subclass 151) Implements in which the blade is pivoted to the sheath or handle so as to be folded into the sheath or handle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
258, where a pivoted shear blade moves into a slot in the second blade during the cutting operation.
321, and the notes thereto.
527, for razor handles pivotally connected to blade, especially subclass 528 for blades extending longitudinally to the handle, where the blade is designed to fold into the sheath or handle.