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The Fishing Reel Patent Archive

The mechanical heart of American angling

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Push-pin lock

Patent drawing of a fishing reel head plate assembly showing a front view with two spool ends and crank, a detailed rear view of the gear train and pivoted bridge with numbered parts, and several cross-section diagrams illustrating the push-pin locking mechanism in engaged and disengaged positions.

THROW-OFF MECHANISM FOR FISHING-REELSLouis Poeter · December 12, 1916

United States patent drawings and specifications are works of the U.S. government and are in the public domain — they were never copyrighted. Download them, print them, frame them. Our commentary and descriptions are © 2026 The Fishing Reel Patent Archive.

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