H—lo

G. Number of Applications for Patents for the Different Classes of Inventions in each of the Years 1938 to 1946 (inclusive)

7

Note.—Owing to some inventions being classified under more than one heading, the figures will total more than the actual number of applications received. No. Class. 1938. 1939. 1940. 1941. 1942. 1943. 1944. 1945. 1940. 1 Advertising and displaying signs, &c. 17 8 3 3 1 1 6 3 7 2 Aeronautics 11 15 19 15 28 22 29 14 29 3 Amusements, music, exercisers, games, &c. 31 47 27 46 30 29 35 33 55 4 Attaching and securing (including bolts, ties, &c.) 12 19 14 12 23 21 17 66 40 5 Boilers (steam) 3 4 2 2 2 5 3 2 6 Boots and shoes .. .. 17 17 12 15 11 14 17 28 26 7 Bottles, bottling, and glass-working 37 30 16 10 17 10 14 29 28 8 Boxes, cans, and casks 52 45 34 43 33 32 47 44 68 9 Brewing, distilling, &c. 9 1 2 2 1 5 3 2 10 Brooms and brushes (including mops) 9 8 6 2 8 4 8 4 10 11 Building-construction 27 25 15 24 23 27 46 55 49 12 Building-construction (brick and cement com48 32 28 30 19 20 48 87 82 positions and moulding) 13 Building-construction (windows and doors) 11 20 8 11 7 14 20 14 25 14 Chemicals 16 19 13 9 25 16 22 60 106 15 Cleaning, polishing, &c. 25 9 8 6 5 8 20 15 27 16 Closets and urinals i6 19 18 17 15 16 20 15 12 17 Coin-freed mechanism 7 5 2 1 1 1 3 4 4 18 Cooling and freezing 20 19 9 14 5 6 15 32 16 19 Cultivating and tilling 31 21 28 26 7 16 35 35 31 20 Cutting and sawing, and tools 33 28 25 30 41 51 69 85 94 21 Dairying 22 31 22 36 9 9 24 15 20 22 Drains and sewers 7 5 5 3 1 4 3 10 7 23 Dredging and excavating (including rock drills) .. 8 8 11 5 8 13 10 6 9 24 Drying 11 15 20 18 15 19 22 23 39 25 Electricity and magnetism 59 106 67 61 61 92 110 155 221 26 Engines (air, gas, and oil) 19 22 58 34 34 44 30 57 87 27 Engines (steam), including rotary pumps 7 6 3 5 4 6 4 12 13 28 Engines (miscellaneous and engine accessories), 28 21 15 18 16 25 41 48 30 including current motors, solar motors, tide motors, wave motors, windmills, miscellaneous motors 29 Explosives, firearms, and targets 5 17 26 34 64 74 30 12 18 30 Exterminating (including trapping animals) 20 16 12 8 6 9 40 55 39 31 Fencing IS 20 12 8 8 8 15 12 13 32 Fencing (strainers) 2 2 2 33 Fibre-dressing (including rope-making) 20 5 11 7 8 4 10 11 15 34 Filters 6 9 5 4 2 8 7 23 9 35 Fire alarms, escapes, ladders, and extinguishers .. 10 14 2 6 8 10 12 4 5 36 Food 10 23 11 10 6 17 12 7 13 37 Furnaces and kilns (including smoke-consumers) 19 20 9 4 15 10 4 4 6 38 Furniture and upholstery, desks, blinds, curtains, Arn 40 46 45 53 23 30 41 49 67 39 GOl/a Gas-manufacture for lighting, heating, or power 5 9 60 32 25 8 6 13 9 purposes 40 Harness (including horse, &c., covers) 1 3 2 2 2 2 2 3 4 41 Harvesting and grading 20 29 23 23 5 21 20 16 9 42 Heating, and fuel-manufacture 36 28 19 19 12 13 18 44 70 43 Illuminating (except gas-manufacture) 138 86 81 57 46 43 52 22 33 44 Indicating, calculating, and measuring (including 54 39 35 38 27 26 66 67 51 moisture-testers) 45 Kitchen utensils and cooking appliances (includ40 25 19 30 21 18 34 48 64 ing ovens) 46 Lifting, hauling, and loading 18 20 14 11 15 22 36 32 33 47 Locks, latches, and hinges 15 20 11 10 5 14 36 31 21 48 Marine and sub-marine (including lake and river 11 21 12 34 25 22 23 11 10 engineering) 49 Marking (tickets, labels, &c.) 4 6 4 3 2 2 6 4 6