H.—lo.

G.—Number of Applications for Patents for the Different Classes of Inventions in each of the Years 1929 and 1930, together with the Average for the Years 1924-28 (inclusive).

Note. —Owing to some inventions being classified under more than one heading, the figures will total more than the actual number of applications received.

6

Class. 1924-28 1929. 1930. Class. 1924-28 1929. 1930. Advertising and displaying signs, 32-4 24 23 Illuminating (except gas-manufac- 66-6 60 59 &c. ture) Aeronautics .. .. .. 5-2 24 12 Indicating, calculating, and measur- 59-8 74 80 Amusements, music, exercisers, 75-4 56 72 ing (including moisture-testers) games, toAttaching and securing (including 40-4 30 24 Kitchen utensils and cooking 62-6 45 56 bolts, ties, &c.) appliances (including ovens) Boilers (steam) .. .. .. 14-6 22 9 Lifting, hauling, and loading .. 54-2 4!) 41 Boots and shoes .. .. 33-8 25 30 Locks, latches, and hinges .. 29-0 32 23 Bottles, bottling, and glass-working 30-4 44 46 Boxes, cans, and casks .. .. 83-6 58 84 Marine and submarine (including 22-4 18 22 Brewing, distilling, &c. .. .. 11-4 18 18 lake and river engineering) Brooms and brushes (including 17-8 14 14 Marking (tickets, labels, &c.) .. 8-8 16 16 mops) Medicines and surgical appliances 30-4 27 40 Building-construction .. .. 38-2 53 28 (including ear-instruments, dental Building - construction (brick and 51-2 51 33 work, &c.) cement compositions and mould- Metal-working (including welding, 32-0 40 27 ing) stamping, and plating) Building-construction (windows and 28-2 29 34 Milking-machines* .. .. 53-4 45 38 doors) Minerals (including filtration, lixi- 19-4 19 11 viation, screens, &c.) Chemicals .. . • • • 31-6 29 24 Minerals (magnetic separators) .. 0-8 3 — Cleaning, polishing, &c. .. .. 24-6 44 30 Minerals (stampers and pulverizers) 3-2 5 3 Closets and urinals .. .. 23-0 31 32 Coin-freed mechanism .. .. 6-8 21 8 Oils and lubricators .. .. 31-0 26 J25 Cooling and freezing .. .. 20-0 42 33 Cultivating and tilling .. .. 52-8 58 61 Paints and painting (including 14-6 24 19 Cutting and sawing, and tools .. 63-2 49 66 kauri-gum) Pipes, tubes, and hose .. .. 26-6 31 18 Dairying* .. .. •• 47-2 51 52 Preserving .. .. .. 13-6 19 15 Drains and sewers . • • • 7-4 4 7 Presses .. .. • • 8-8 9 11 Dredging and excavating (including 13-2 11 6 Printing and photography .. 32-0 53 37 rock-drills) Pumps and sprayers (except rotary 20-0 23 23 Drying .. .. ■. 20-0 21 22 pumps) Electricity and magnetism .. 130-8 146 121 Railways and tramways .. 51-4 38 34 Engines (air, gas, and oil) .. 58-4 47 63 Roads and ways (including road 23-2 25 19 Engines (steam), including rotary 13-2 15 10 watering) pumps Engines (miscellaneous and engine 58-8 37 35 Seed-dressing, chaff-cutting, and 7-0 7 8 accessories), including current threshing motors, solar motors, tide motors, Seed-sowers .. .. .. 16-4 31 29 wave motors, windmills, miscel- Sewing and knitting .. .. 12*2 20 15 laneous motors Sheep and cattle (including veteri- 27-6 35 36 Explosives, firearms, and targets .. 6-0 7 7 nary appliances) Exterminating (including trapping 26-2 26 20 Sheep shearing and clipping .. 11-4 - 8 7 animals) " Shop and hotel fittings .. .. 19-0 25 29 Stationery and paper .. .. 39-8 39 38 Fencing .. .. •. 24*0 27 25 Fencing (strainers) .. • ■ 6-8 2 4 Telephony and telegraphy (including 182-2 242 233 Fibre-dressing (including rope- 24-2 41 22 phonographs, &c.) making) Tobacco . • • • • • 11-8 11 17 Filters • • • • • • 6-6 b 9 Fire alarms, escapes, ladders, and 19-6 21 17 Valves and cocks .. .. 18-0 20 18 extinguishers Vehicles .. •• 194-6 147 112 Pood .. .. .. .. 26-8 22 28 Vehicles (velocipedes) .. .. 42-4 27 26 Furnaces and kilns (including smoke- 16-2 31 15 Ventilating .. .. .. 4-8 10 7 consumers) Furniture and upholstery, desks, 61-2 58 53 Washing and cleansing .. .. 28-2 3b 40 blinds, curtains, &c. Water-supplying .. .. 11-2 7 10 Wearing-apparel .. .. 44-0 34 43 Gas-manufacture for lighting, heat- 9-4 10 II Wools and hides .. ■■ 10-6 12 16 ing, or power purposes Miscellaneous inventions not» m 23-0 34 31 Harness (including horse, &c., covers) 5-6 5 3 other classes, as indiarubberHarvesting and grading .. .. 15-8 34 51 manufacture, fishing-appliances, Heating, and fuel-manufacture .. 64-0 49 36 &c. * Prior to 1911, milking machines were included in class "Dairying," but are now a separate class.