Mark Identification

3M

Serial Number

73679057

Filing Date

Aug 17, 1987

Registration Date

Apr 12, 1988

Trademark by

MINNESOTA MINING AND MANUFACTURING COMPANY

Classification Information

ELECTRONIC APPARATUS CONNECTABLE TO A COMPUTER FOR MEASURING THE FREQUENCY RESPONSE OF A HEARING AID IN THE EAR CANAL OF A HEARING AID WEARER AND ADJUSTING THE FREQUENCY RESPONSE OF A HEARING AID TO THE REQUIREMENTS OF THE WEARER

Electrical and Scientific Apparatus