Home| FAQ	Search:Advanced|Person|Company| Type|Class	Login

Quick search:	Patent number:	Patent Date:

US Patent: 170,949
Improvement in screw-cutting die holders
Patentee: John J. Grant (exact or similar names) - Hartford, CT USPTO Classifications: 470/72 Tool Categories: wrenches : tap wrenches and die stocks Assignees: Pratt & Whitney Co. - Hartford, CT Manufacturer: Pratt, Whitney & Co. - Hartford, CT Witnesses: Theodore G. Ellis Wendell R. Curtis	Patent Dates: Applied: Nov. 15, 1875 Granted: Dec. 14, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Stan Schulz "Vintage Machinery" entry for Pratt & Whitney Co.

Copyright © 2002-2024 - DATAMP