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Patent 04654898 - Removable ear muff for headphones > Summary

US Patent

Patent No. US 04654898

Published on Apr 7, 1987

Application No. 6/786507

Filed on Oct 11, 1985

Priority Date -

Inventor/Applicants

Ishikawa, Gerald K. - Chicago, IL

Classification

National:2

220/9

381/187;

Field of Search 8

179/156.R

179/156.A;

179/182.R;

179/184;

179/182.A;

2/209;

2/6;

2/423;

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