File:Balance board rope-brake by Frederic G Ludwig.TIF
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DescriptionBalance board rope-brake by Frederic G Ludwig.TIF |
The drawing is from the 1958 U.S. patent for a rocker-roller balance board designed by Frederic George Ludwig of Woodbridge, Connecticut. The November version's descriptions of the rope are of one that is elastic. |
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Date | ||||
Source | Patent 2,829,891 of the U.S. Patent and Trademark Office | |||
Author | Frederic George Ludwig | |||
Permission (Reusing this file) |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:27, 7 July 2011 | ![]() | 2,320 × 3,408 (31 KB) | DavidMaisel (talk | contribs) | {{Information |Description= The drawing is from the 1958 U.S. patent for a rocker-roller balance board designed by Frederic George Ludwig of Woodbridge, Connecticut.<br> He applied for the patent in 1955. |Source |
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Image title | 00000000 |
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Width | 2,320 px |
Height | 3,408 px |
Bits per component | 1 |
Compression scheme | CCITT Group 4 fax encoding |
Pixel composition | Black and white (White is 0) |
Image data location | 384 |
Orientation | Normal |
Number of components | 1 |
Number of rows per strip | 3,408 |
Bytes per compressed strip | 31,574 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
File change date and time | 17:44, 21 January 1999 |