18941218_Bowling_ball_-_U.S._Patent_531,103.png
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Summary
| Description |
English:
Fig. 1 of U.S. Patent 531,103, titled "Bowling Ball", issued December 18, 1894. Bowling ball has thumb hole and a single finger hole.
|
| Date | |
| Source | https://patents.google.com/patent/US531103A (Google patents) |
| Author | United States of America, U.S. Patent and Trademark Office, publishing the 1894 patent of inventor F. G. Dokkenwadel. |
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) before January 1, 1929.
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