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Manufacturers Index - Stow Flexible Shaft Co., Ltd.

Stow Flexible Shaft Co., Ltd.
Philadelphia, PA, U.S.A.
Manufacturer Class: Metal Working Machinery

Patents
This page contains information on patents issued to this manufacturer.

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Key to Links for Patent Information

USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
201,178 Mar. 12, 1878 Device for Transmitting Power John F. Haskins Philadelphia, PA
397,311 Feb. 05, 1889 Drilling-machine Frederic Schoff Philadelphia, PA This machine is "to be used as a portable drilling-machine in connection with a flexible driving-shaft".
420,284 Jan. 28, 1890 Universal Joint Coupling Frederic Schoff Philadelphia, PA
437,459 Sep. 30, 1890 Portable reaming and tapping tool Frederic Schoff Philadelphia, PA
438,740 Oct. 21, 1890 Method of and machine for tapping or connecting branches to pipes Philip Eley Bayonne, NJ This patent date was seen on an "Air Port Cutter" in a catalog from Stow Flexible Shaft Co., and this is is a possible match.
439,567 Oct. 28, 1890 Corner Drill Press Frederic Schoff Philadelphia, PA
441,509 Nov. 25, 1890 Drill-support Frederic Schoff Philadelphia, PA