Device for transmitting the moment of rotation from the working shaft

A device for transmitting the moment of rotation from the working shaft: No. 25181. Declared.02/18/1912.Issue 10/23/1913 / "Shuckert and K".- [B.M .: B. and., 1913].-[1] p., 1 l.Il .. -Description of the device for transmitting rotation from the working shaft to the axis of the device, which records the speed of its rotation.To the privilege of the Russian Society of Shuckert and Co., in the city of St. Petersburg, declared on February 18, 1912 (okhr. St. No. 51720).Class 42D.No. 25181. The privilege issued on October 23, 1913..I. "Shuckert and Co.", Society (Petersburg) .1.People (collection).Electronic copy source: PBOriginal storage location: VPTB FIPS