FRIEDRICH RICHARD DIETRICH innovation strategy

Patent filings in countries

#	Industry
#1	Transport
#2	Electrical machinery and energy
#3	Engines, pumps and turbines
#4	Mechanical elements
#5	Machine tools
#6	Textiles and paper

#	Technology
#1	Vehicle signalling and lighting
#2	Non-portable lighting devices
#3	Lighting device details
#4	Cylinders for combustion engines
#5	Indexing scheme for uses of lighting devices
#6	Pistons and sealings
#7	Shedding mechanisms
#8	Grinding tools
#9	Special machines
#10	Electric incandescent lamps

Publication	Filing date	Title
GB537321A	1939-08-30	Improvements in lamps for vehicles
GB532203A	1939-08-21	Improvements in lamps for vehicles
GB536889A	1939-05-02	Improvements in and relating to rear lights for road vehicles
GB523342A	1938-12-31	Improvements in rear lights for road vehicles
GB509337A	1938-02-15	Improvements in and relating to anti-dazzle reflectors for lamps
GB475857A	1937-05-03	Improvements in lamp reflectors
GB466739A	1936-08-13	Improvements in pistons
GB460122A	1936-06-24	Improvements in lamp reflectors
GB454131A	1936-02-24	Improvements in and relating to lamp reflectors
GB449292A	1935-11-12	Improvements in lamp reflectors and lenses therefor
GB437001A	1935-01-24	Improvements in lamps with lenses and reflectors
DE669431C	1934-12-18	Ellipsoid headlights equipped with lenses for electrical light sources, especially for motor vehicles
DE688328C	1934-06-15	Electric vehicle headlights
DE727833C	1934-05-15	Electric vehicle headlight made from three paraboloid parts
GB413937A	1933-11-22	Improvements in reflectors for lamps
GB401581A	1933-04-08	Improvements in pistons
GB416561A	1932-12-15	Improvements in electric lamps with reflectors
GB342704A	1929-11-04	Improvements in or relating to means for deflecting the head lights of vehicles
GB316273A	1929-07-26	Improved means for deflecting the headlights of vehicles
GB305241A	1929-02-02	Improvements in or relating to apparatus for deflecting the head lamps of vehicles