H.—lo.

G.—Table showing Number of Applications for Patents for the Different Classes of Inventions for each of the Years 1918, 1919, and 1920.

5

Class. 1918. 1919. 1920. Class. 1918. 1919. 1920. Advertising and displaying signs, &c. 2 5 20 Illuminating (except gas-manufac-ture) Indicating, calculating, and measuring (including moisture-tosters) 13 20 50 Aeronautics Amusements, music, exercisers, games, &o. Attaching and securing (including bolts, ties, &c.) 6 82 1 I 52 23 80 27 39 81 29 38 72 Kitchon utensils and cookingappliances (including ovens) 16 43 86 Boilers (steam) Boots and shoes Bottles, bottling, and glass-working Boxes, cans, and casks Brewing, distilling, &c. .. Brooms and brushes (including mops) Building construction ,, (brick and cement compositions and moulding) -. (windows and doors) 5 33 12 52 5 11 5 38 19 87 7 9 21 46 35 81 33 19 Lifting, hauling, and loading Locks, latches, and hinges 26 16 37 27 60 51 21 34 15 47 56 17 73 102 22 Marine and submarine (including lake and river engineering) Marking (tickets, labels, &c.) Medicines and surgical appliances (including ear-instruments, dental work, &c.) Metal-working (including welding, stamping, and plating) Milking-machines* Minerals (including filtration, lixiviation, screens, cfeo.) (magnetic separators) (stampers and pulvorizers) 28 4 24 19 20 10 19 16 34 6 48 55 Chemicals Cleaning, polishing, &c. .. Closets and urinals Coin-freed mechanism Cooling and freezing Cultivating and tilling Cutting and sawing, and tools 15 9 9 3 3 39 30 32 13 L6 2 13 1(1 65 23 28 22 6 20 63 98 51 14 59 16 57 24 i 7 1 5 Oils and lubricators 14 19 48 Dairying* Drains and sewors Dredging and excavating (including rock-drills) Drying .. 15 i 30 3 8 45 8 14 Paints and painting (inoluding kauri-gum) Pipes, tubes, and hoBe Preserving Presses Printing and photography Pumps and sprayers (except rotary pumps) 40 9 6 2 15 11 86 10 9 3 27 17 59 30 18 6 30 51 10 12 30 Electricity and maguetism Engines (air. gas, and oil) (steam), including rotary pumps „ (miscellaneous and engine accessories), inoluding current motors, solar motors, tide motors, wave motors, windmills, miscellaneous motors Explosives, firearms, and targets .. Exterminating (including trapping animals) 33 43 11 38 10 99 7 80 96 135 27 87 Railways and tramways Roads and ways (inoluding roadwatering) Soed-drossing, chaff-cutting, and thre.-ihing Seed-sowers Sewing and knitting Sheep and cattle (including veterinary appliances) Sheep shearing and clipping Shop and hotel fittings Stationery and paper 9 20 3 20 7 4 57 14 8 8 14 25 7 18 22 9 18 26 15 1(1 13 15 16 29 4 6 28 5 9 31 10 19 53 Fencing (strainers) Fibre-dressing (including ropemaking) Filters Fire alarms, escapes, ladders, and extinguishers Food .. Furnaces and kilns (inoluding smokeconsumers) Furniture and upholstery, desks, blinds, curtains, &c. 12 6 19 25 6 16 22 9 17 Telephony and telegraphy (inoluding phonographs) Tobacco 18 70 147 8 9 8 8 11 5 2 4 21 Valves and cocks Vehicles „ (velocipedes) Ventilating 2 54 87 16 66 32 34 164 89 3 20 14 17 17 34 29 42 59 77 Washing and cleansing Water-supplying Wearing-apparel Wools and hides 13 2 25 12 17 1 33 6 43 10 54 23 Gas-manufacture for lighting, heating, or power purposes 10 20 36 Harness (including horse, &o., covers) Harvesting and grading Hoating, and fuel-manufacture .. 20 8 37 13 II 71 14 9 103 Miscellaneous inventions not in other olasses, as indiarubbermanufaoture, fishing-appliances, &o. 11 10 27 * Prior to 1911 milking-machines w Note.-—Owing to some inventions 1 ictual number of applications received. ire inclu leing claf ided in ssiried Lilaes " tnder r )airying," but are now a separate class, lore than one heading, the figures will total rathor more t] tan the