METHOD FOR APPLYING OF IDENTIFICATION MARKS ON CARTRIDGE CHAMBER OF SMOOTHBORE WEAPON Russian patent published in 2007 - IPC B23H9/06 F41A21/00 

FIELD: designing and production of custom-made firearm produced in small lots.

SUBSTANCE: the method consists in applying on the inner surface of the cartridge chamber of a mixture of fluoride of bivalent lead or oxide of quadrivalent germanium activated by thulium or ytterbium capable of generation of luminescent radiation in the blue band, La₂O₃S activated by ytterbium or erbium capable of generation of radiation in the green band, and Y₂O₃-YOF activated by ytterbium or erbium, as well as Y₂O₃-YOCl activated by ytterbium or erbium capable of generation of radiation in the red band, the relation of the mentioned substances is prescribed beforehand.

EFFECT: provided identification of the weapon by the empty case with the use of the earlier made marking elements.

4 cl