Patent ID: 11911088
Assignee: BIO-PROTECH INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 2:
3. The smoke pencil with swivel device of claim 1, wherein the rotation guide protrusion protrudes from an outer surface of a longitudinal end portion of the coupling portion and a rotation support protrusion protrudes from an outer surface of another longitudinal end portion;
the first rotation guide slit is formed on an inner surface of a longitudinal portion of the first case and a first rotation support slit is formed on an inner surface of another longitudinal portion of the first case so that a side of the rotation support protrusion is inserted therein; and
the second rotation guide slit is formed on an inner surface of a longitudinal portion of the second case and a second rotation support slit is formed on an inner surface of another longitudinal portion of the second case so that another side of the rotation support protrusion is inserted therein.