MAGNETIC CODED CARDS MAGNETIC

Brand	Owner	Address	Description
RESTRICT-A-CARD	WALTER KIDDE & COMPANY, INC.	CLIFTON NJ	MAGNETIC CODED CARDS AND MAGNETIC OR ELECTROMAGNETIC DOOR LOCKS AND HARDWARE THEREFOR;KEYS AND LOCKSETS;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A magnetic recording medium having a non-magnetic support and a magnetic layer formed thereon, wherein the magnetic layer comprises a ferromagnetic powder, a binder and a non-magnetic inorganic powder, and wherein at least 95% of the non-magnetic powder particles contained in the magnetic layer have a particle size of 0.05 to 0.013 ?m, provide that the non-magnetic powder particles are those found in a field of view of 1.8 ?mÃ—2.4 ?m when the surface of the magnetic layer is observed with a scanning electron microscope at a magnification of 50,000 times.