H.—lo.

F.—Table showing Number of Applications for Patents for the Different Classes of Inventions for each of the Years 1919, 1920, and 1921.

6

Class. 1919. 1920. 1921. Class. 1919. 1920. 1921. Advertising and displaying signs, &e. Aeronautics Amusements, music, exercisers, games, &e. Attaching and securing (including bolts, ties, &c.) 5 11 52 20 23 80 27 8 85 Illuminating (except gas-manufac- 20 50 57 ture) Indicating, calculating, and measur- 39 81 88 ing (including moisture-testers) 20 39 50 81 57 88 38 72 74 Kitchen utensils and cooking- 43 86 61 appliances (including ovens) 43 86 61 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 88 19 37 7 9 21 46 85 81 33 19 16 32 17 87 85 31 Lifting, hauling, and loading .. 37 60 45 Locks, latches, and hingeB .. 27 51 39 37 27 60 51 45 39 Marine and submarine (including 26 34 36 lake and river engineering) Marking (tickets, labels, &c.) .. 10 6 17 Medicines and surgical appliances 19 48 39 (including ear-instruments, dental work, &o.) Metal-working (inoluding welding, 16 55 50 stamping, and plating) Milking-machines* .. ..59 57 126 Minerals (inoluding filtration, lixi- 16 24 35 viation, screens, &o.) (magnetic separators) .. .. 1 1 (stampers and pulverizers) 7 5 4 26 34 36 10 19 6 48 17 39 "47 56 73 -102 71 122 16 oo 50 17 22 21 | Chemicals Cleaning, polishing, &c. Closets and urinals Coin-freed mechanism .. Cooling and freezing Cultivating and tilling Cutting and sawing, and tools 32 13 16 2 13 46 65 23 28 22 6 20 63 98 62 25 ! 23 2 25 43 120 59 16 57 24 126 35 "l 1 5 1 4 Oils and lubrioators .. ..19 48 50 19 48 50 45 8 14 Paints and painting (inoluding 36 59 58 kauri-gum) Pipes, tubes, and hose .. 10 30 28 Preserving .. .. .. 9 18 20 Presses .. .. .. 3 6 13 Printing and photography .. 27 30 34 Pumps and sprayers (except rotary 17 51 54 pumps) 36 59 58 Dairying* Drains and sewers Dredging and excavating (including rock-drills) Drying 30 3 8 50 10 33 10 9 3 27 17 30 18 6 30 51 28 20 13 34 54 12 30 20 Electricity and magnetism Engines (air, gas, and oil) „ (steam), including rotary pumps „ (miscellaneous and engine accessories), including current motors, solar motors, tide motors, wave motors, windmills, miscellaneous motors Explosives, firearms, and targets .. Exterminating (including trapping animals) 40 99 7 50 96 135 27 87 138 104 23 113 Railways and tramways .. 20 57 59 Roads and ways (inoluding road- 7 14 1 watering) Seed-dressing, chaff-cutting, and 4 8 16 threshing Seed-sowers .. .. .. 7 9 6 Sewing and knitting .. 18 18 32 Shoep and cattle (including veteri- 22 26 38 nary applianoes) Sheep shearing and clipping .. 5 10 6 Shop and hotel fittings .. .. 9 19 31 Stationery and paper .. 31 53 82 20 7 4 57 14 8 59 1 16 7 18 22 9 18 26 6 32 38 13' : 16 15 ; 29 17 33 5 9 31 10 19 53 6 31 82 Fencing „ (strainers) Fibre-dressing (including ropemaking) Filters Fire alarms, escapes, ladders, and extinguishers Food .. Furnaces and kilns (including smokeconsumers) Furniture and upholstery, desks, blinds, curtains, &c. 25 22 6 9 16 17 18 4 17 Telephony and telegraphy (inoluding 70 147 139 phonographs) Tobacco- .. .. .. 8 11 11 70 147 139 8 11 11 8 4 9 21 8 30 Valves and cooks .. 16 34 24 Vehicles .. .. 66 164 146 (velocipedes) .. ..32 89 67 Vontilating .. .. .... 3 10 16 66 32 34 164 89 3 24 146 67 10 17 34 17 29 38 17 59 I 77 77 Washing and cleansing .. 17 43 43 Water-supplying .. .. 1 10 13 Wearing-apparel .. 33 54 52 Wools and hides .. .. 6 23 16 17 1 33 6 43 10 54 23 43 13 52 16 Gas-manufacture for lighting, heating, or power purposes 20 ; 36 27 I 13 14 14 9 71 103 18 19 33 Miscellaneous inventions not in 10 27 33 other classes, as indiarubbermanufacture, fishing-appliances, &o. 10 27 33 Harness (inoluding horse, &o., covers) Harvesting and grading Heating, and fuel-manufacture .. * Prior to 1911 milking-macbines ws ire included in t ilass "D dryiDg," but are now a separate class. Note.—Owing to some inventions 1 number of applications received. jeing classified i mder rn ire than one beading, the figures will total more than the actual