An orthodontic band (10) has a laser engraved mark (14) with a white, frosty appearance. The mark is characterized by an absence of dark surface oxides, and is aesthetic and easy to read. The engraved identification mark inditia are sterilization resistant. <IMAGE>
申请公布号
DE69309604(D1)
申请公布日期
1997.05.15
申请号
DE1993609604
申请日期
1993.10.25
申请人
MINNESOTA MINING AND MFG. CO., SAINT PAUL, MINN., US
发明人
HORNG, BRYAN L., C/O MINNESOTA MINING AND, ST. PAUL, MINNESOTA 55133-3427, US;MARTIN, STEVEN A., C/O MINNESOTA MINING AND, ST. PAUL, MINNESOTA 55133-3427, US
