Datamp.org Patents http://www.datamp.org/ Recently added patents en-us US Patent: 671,039 http://www.datamp.org/patents/displayPatent.php?id=62111&pn=671,039 Screw Driver Patentee: George E. Wood - Southington CT Granted:1901-04-02
Assigned to Acme Manufacturing Co. - Southington CT

A early Patent for George E. Wood involving the use of steel in the handle to protect the from blows of a hammer. Not sure but on the patent description its for screwdriver &c., Chisel? He does mention its uses for chisel as well.
This is one of 61,567 patents currently in the database at datamp.org

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US Patent: 2,664,126 http://www.datamp.org/patents/displayPatent.php?id=8585&pn=2,664,126 Ratchet spiral screw driver Patentees: Judson H. Mansfield - Rockford IL , Edwin C. Swanson - Rockford IL Granted:1953-12-29
Manufactured by Greenlee Brothers & Co. - Rockford IL
Assigned to Greenlee Brothers & Co. - Rockford IL

This is an improvement to Patent 1971289.The main claim of this Patent is to encase the ratchet mechanism, for the protection of the workman, Their work piece and the tool. Sold as the Greenlee #451,example marked Pat Pending, made with stainless steel and a clear green plastic handle.
This is one of 61,567 patents currently in the database at datamp.org

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US Patent: 1,971,289 http://www.datamp.org/patents/displayPatent.php?id=8576&pn=1,971,289 Screw driver Patentees: John Herbert Abramson - Rockford IL , Edwin C. Swanson - Rockford IL Granted:1934-08-21
Manufactured by Greenlee Brothers &Co. - Rockford IL
Assigned to Greenlee Brothers & Co. - Rockford IL

The main claim of this Patent is to encase the ratchet mechanism, for the protection of the workman, his work piece and the tool. Sold as the Greenlee #451,example marked with Patent number, also see Patent 2664126
This is one of 61,567 patents currently in the database at datamp.org

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US Patent: 2,694,920 http://www.datamp.org/patents/displayPatent.php?id=62110&pn=2,694,920 Multiple door locking system and apparatus Patentee: Joseph F. Courtney - Oak Park IL Granted:1954-11-23
Assigned to Helen E. Courtney - Oak Park IL

Co-assignees Theron "Roy" Hedgpeth and Richard L. Berkson had co-founded sheet-metal machinery maker Berkroy Products, Inc., in 1947.
This is one of 61,567 patents currently in the database at datamp.org

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US Patent: 2,564,459 http://www.datamp.org/patents/displayPatent.php?id=62109&pn=2,564,459 Sheet metal brake Patentee: Richard L. Berkson - Encino CA Granted:1951-08-14
Manufactured by Berkroy Products, Inc. - Burbank CA
Assigned to Berkroy Products, Inc. - Burbank CA


This is one of 61,567 patents currently in the database at datamp.org

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