Nikola Tesla U.S. Patent 517,900 - Steam Engine Patent Wrapper Page 17

iling, and a to communication respecting tids Nikola Tesla, Duncan & Page, 120 Broadway, DEPARTMENT OF THE INTERIOR, UNITED STATES PATENT OFFICE, Room No. 348. Ammunitions should be creed to "TN& Commissioner of Patonis, Washington, D. C. (2-071 ) considered. WASHINGTON, D. C.,. New York City. Filed Please find below a communication from the above noted. Subject: Steam Engines. 1894. Dec.29,1893. No. 495,079. EXADINER in charge of the application Johns. Sepsons Commissioner of Patents. As emended the 24 th ult., this case has been not control the exhaust port as there in stated. Claim 1 is objectionable in form, since the valve does Claims 2 & 3 are thought to be inc ouple te, for the reason that ther include no means for controlling the exhaust. for controlling the exhaust should be included in said ela ins. Her. I douleit Me ans 89