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Publisher: US Patent and Trademark Office
Language: en-us
Collection: us_patents
Creative Commons license: Public Domain
| Mediatype: | texts |
| Adder: | kevin@tackledesign.com |
| Inventor: | Nickel Hal G |
| Patent_number: | 2600910 |
| Epc_classificaiton: | G10C3/02 |
| Licenseurl: | http://creativecommons.org/licenses/publicdomain/ |
![[Public Domain]](http://creativecommons.org/images/public/norights.gif "[Public Domain]")