http://www.datamp.org/ Recently added patents en-us http://www.datamp.org/patents/displayPatent.php?id=63990&pn=645,026 Lubricator Patentee: Hugh Woods - Chicago, Cook County IL Granted:1900-03-06
Assigned to Nathan Mfg. Co. - New York NY


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]]> http://www.datamp.org/patents/displayPatent.php?id=63984&pn=184,686 Machines for Tapping Pipes Under Pressure Patentee: John Miller - Cambridgeport, Middlesex County MA Granted:1876-11-21
Manufactured by Walworth Mfg. Co. - Cambridgeport, Middlesex County MA


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]]> http://www.datamp.org/patents/displayPatent.php?id=63983&pn=47,543 Die for Cutting Male-Screw Threads Patentee: Benjamin S. Hill - New York NY Granted:1865-05-02
Manufactured by Walworth Mfg. Co. - Cambridgeport, Middlesex County MA


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]]> http://www.datamp.org/patents/displayPatent.php?id=51964&pn=502,820 Traction Engine Patentee: Byron Jackson - San Francisco CA Granted:1893-08-08


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]]> http://www.datamp.org/patents/displayPatent.php?id=63982&pn=8,532 Lubricator Patentee: John Thomas Cody - Cincinnati, Hamilton County OH Granted:1878-03-26


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