Datamp.org Patents https://www.datamp.org/ Recently added patents en-us US Patent: 847,774 https://www.datamp.org/patents/displayPatent.php?id=84662&pn=847,774 Screw Driver Patentee: Clemence E. Hoffman - Thomaston CT Granted:1907-03-19

Screw Holding screwdriver used used with a special double slotted screwdriver.
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US Patent: 796,154 https://www.datamp.org/patents/displayPatent.php?id=84661&pn=796,154 Screw Driver Patentee: Rienhard Schulze - Baltimore MD Granted:1905-08-01


This is one of 83,959 patents currently in the database at datamp.org

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US Patent: 797,078 https://www.datamp.org/patents/displayPatent.php?id=84660&pn=797,078 Screw Driver Patentee: Gentry Shelton - St. Louis MO Granted:1905-08-15


This is one of 83,959 patents currently in the database at datamp.org

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US Patent: 739,606 https://www.datamp.org/patents/displayPatent.php?id=84659&pn=739,606 Screw Driver Patentee: Samuel P. Kemm - Franklin PA Granted:1903-09-22


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US Patent: 686,192 https://www.datamp.org/patents/displayPatent.php?id=84658&pn=686,192 Screw Driver Patentee: George Thomas Bailey - Pleasanthill MO Granted:1901-11-05

It appears that Bailey has combined Mann's Patent 625046 and a ratcheting screwdriver.
This is one of 83,959 patents currently in the database at datamp.org

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