LUDLUM STEEL CO innovation strategy

Patent filings in countries

#	Industry
#1	Materials and metallurgy
#2	Civil engineering
#3	Surface technology and coating
#4	Machine tools
#5	Machines
#6	Consumer goods

#	Technology
#1	Alloys
#2	Structural elements
#3	Finishing work on buildings
#4	Building materials
#5	General building constructions
#6	Unspecified technologies
#7	Producing decorative effects
#8	Coating metallic material
#9	Grinding or polishing devices

Publication	Filing date	Title
GB497136A	1938-05-10	Improvements in wall panel sheet
GB499240A	1938-02-19	Improvement in tile and tile assembly
GB497180A	1938-01-19	Improved decorative metal-faced panel or sheet and method of making same
GB487198A	1937-10-12	Improved metal-faced heat and sound insulating material
GB489903A	1937-09-20	Improvements in flexible metal tile or sheathing element
US2127245A	1935-07-19	Alloy
US2015991A	1935-01-04	Alloy steel for internal combustion engine valves and associated parts
US1919211A	1932-04-20	Alloy steel
US1966930A	1932-03-28	Swinging grinder
US1538360A	1919-02-27	Malleable noncorrodible alloy
US1538337A	1919-02-27	Alloy
US1508032A	1919-02-27	Corrosion-resisting ferrous alloy
US1621523A	1917-12-18	Titanium alloy
US1534570A	1917-08-15	Metallic alloy
CA360566A	None	Alloy steel for engine valves