United States Court of Appeals For the Ninth Circuit . To all U) wlioin these presents shall come, Greeting;-: THIS IS TO CERTIFY that the annexed is a truecopy from the Records of this Office of the Specifica-tion and Dra\vin.«^s in the matter of theLetters Patent ofHarry R. Decker,Number , Granted Alav 4, 1909, for Imi)rovement in Mechanism for Drillins.^- Wells. IN TP:STIi\10NY WHEREOF I have hereunto set my hand and caused the seal of the Patent Office to be at the City of Washinj^ton, this ^^ist day of May, in the year of our Lord one thousand nine hundred and sixteen and


United States Court of Appeals For the Ninth Circuit . To all U) wlioin these presents shall come, Greeting;-: THIS IS TO CERTIFY that the annexed is a truecopy from the Records of this Office of the Specifica-tion and Dra\vin.«^s in the matter of theLetters Patent ofHarry R. Decker,Number , Granted Alav 4, 1909, for Imi)rovement in Mechanism for Drillins.^- Wells. IN TP:STIi\10NY WHEREOF I have hereunto set my hand and caused the seal of the Patent Office to be at the City of Washinj^ton, this ^^ist day of May, in the year of our Lord one thousand nine hundred and sixteen and of the Independence of the United States of .America the one hundred and fortieth. I Seal I J. T. Newton .\ctini; Commissioner of United States Internal Revenue stamp. Docu-mentary. Series of 1914. Ten cents. Canceled Mav31 1916 U. S. Patent Ofiice. | 1474 Arthur G. JVillard et al. vs. H. R. DECKER. MECKANISM FOE DBILLINQ VTELLS. APPLICiTIOS TILED OCT. 12, 1806. BEVEWED SEPT. 17, 1908. 920 548. Patented May 4,1909. iSHEETS-SHEEl jF^i^.^.. ^^ .1.


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