|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '191') AND (category.subclass = '30') ORDER BY description ASC, date, patent, type|
Total of 9 patents found where: Class is '191'; Subclass is '30';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||781,661||February 7, 1905||Stringer Support for Electric Third Rails
Method of mounting stringers for third rails made of a beam of wood on standard telegraph and telephone glass insulators
|KINSMAN, Frank E.
|U||1,090,234||March 17, 1914||Insulating and Supporting Mechanism
Ohio Brass third rail support insulator designed to be use on narrower ties
|ROGERS, Joseph W.
||Third Rail||1/2 to Nathan Shute|
|U||584,477||June 15, 1897||Insulator
Pair of third rail insulators set on both sides of the rail fitting in the contour of the sides of the rail.
|LIBBY, Sam H.
||Third Rail||General Electric Co.|
|U||693,603||February 18, 1902||Third Rail Insulator for Electric Railways
Square third rail insulator with metal foot and metal cap that fit in a square hole in top and bottom of the insulator.
|HOBBS, Charles M.
||Third Rail||1/2 to Harold P. Brown|
|U||790,957||May 30, 1905||Insulating Support for Third Rails
Support for third rail with insulating material between the support and the rail.
|U||908,180||December 29, 1908||Third Rail
Third rail insulator system (Ohio Brass)
|WILGUS, William J.
SPRAGUE, Frank J.
|U||764,384||July 5, 1904||Insulating Support for Electric Third Rails
Third rail insulator that screws into metal support ahd has a threaded hole in top to receive the metal rail support.
|SLATER, Frederick R.
||Third Rail||Bleecker S. Barnard|
|R||11,613||June 22, 1897||Insulator Support for Contact Rails
Third rail insulator with top and side brackets (reissue of 556,971)
CHAPMAN, James R.
|Third Rail||General Electric Co.|
|U||556,971||March 24, 1896||Insulated Support for Contact Rails
Third rail insulator with top and side brackets (see reissue 11,613 on 6-22-1897)
CHAPMAN, James R.
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