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 Title: |
US3247330 -
Text Title unavailable
- see image for title
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| Inventor: |
Hinman
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| Issue Date: |
1966-04
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| Current U.S. Class: |
381/023.1: ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES; BINAURAL AND STEREOPHONIC; Hearing aid
351/158: OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING; SPECTACLES AND EYEGLASSES; Combined
381/160: ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES; ELECTRO-ACOUSTIC AUDIO TRANSDUCER; Having acoustic wave modifying structure; Reflecting element
381/327: ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES; HEARING AIDS, ELECTRICAL; Specified casing or housing; Spectacle
381/381: ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES; ELECTRO-ACOUSTIC AUDIO TRANSDUCER; Plural or compound reproducers; Headphone; Particular support structure; Hook over ear or spectacle
D24/174: MEDICAL AND LABORATORY EQUIPMENT; EQUIPMENT FOR DIAGNOSIS, ANALYSIS, OR TREATMENT; Auricular (45); Hearing aid
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| Forward References: |
14 patents reference this one
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First Image Pages
7 pages total
High Resolution
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