H.—lo.

H.—Table showing Number of Applications for Patents for the Different Classes of Inventions for each of the Years 1922, 1923, and 1924.

I.—Applications pending at End of Year 1924. Total, 1,910. J. —Patents in Fokce at End of Year 1924. Patents sealed from 31st December, 1921 to 31st December, 1924 .. 3 ,359 Third-year fees paid from 3lst December, 1921, to 31st December, 1924 .. 1,980 Fourth-year fees paid from 31st December, 1920, to 31st December, 1924 .. 4 Sixth-year fees paid from 31st December, 1918, to 31st December, 1924 .. 1,532 Seventh-year fees paid from 31st December, 1917, to 31st December, 1924 .. 230 Total .. .. .. .. .. .. •• 7,105

7

Class. ! 1922. ! 1923. 1924. j . Class. ! 1922. | 1923. 1924. I 1 j i Advertising and displaying signs, 26 26 32 Illuminating (except gas-manufac- 79 71 75 &c. ture) Aeronautics .. .. .. 8 7 7 Indicating, calculating, and measur- 115 84 53 Amusements, music, exercisers, 81 84 75 ing (including moisture-testers) games, &o. Attaching and seouring (including 123 76 44 Kitchen utensils and cooking- 103 85 67 bolts, ties, &c.) appliances (including ovens) Boilers (steam) .. .. 10 12 20 Lifting, hauling, and loading .. 60 50 52 Boots and shoes .. .. 58 39 32 Locks, latches, and hinges .. 70 33 30 Bottles, bottling, and glass-working 39 29 31 Boxes, cans, and casks .. .. 143 111 107 Marine and submarine (including 46 16 28 Brewing, distilling, &c. .. 22 12 7 lake and river engineering) Brooms and brushes (including 25 20 24 Marking (tickets, labels, &c.) .. 9 13 8 mops) Medicines and surgical appliances 56 49 33 Building-construction .. ..71 60 18 (including ear-instruments, dental „ (brick and cement com- 93 69 64 work, &c.) positions and moulding) Metal-working (including welding, 50 36 27 „ (windows and doors) .. 48 56 30 stamping, and plating) Milking-machines* .. .. 134 94 72 Chemicals .. .. 46 35 39 Minerals (including filtration, lixi- 24 35 28 Gleaning, polishing, &c. .. ..41 26 24 viation, screens, &o.) Closets and urinals .. 34 33 25 „ (magnetic separators) .. 1 2 Coin-freed mechanism .. .. 4 2 .. „ (stampers and pulverizers) 4 11 Cooling and freezing .. .. 43 31 19 Cultivating and tilling .. 45 34 62 Oils and lubricators .. 45 37 24 Cutting and sawing, and tools .. Ill 85 55 Paints and painting (including 45 18 17 Dairying* .. .. .. 75 98 59 kauri-gum) Drains and sewers .. ..11 7 10 Pipes, tubes, and hose .. ..38 29 29 Dredging and excavating (including 18 8 13 Preserving .. .. 13 22 22 rock-drills) Presses .. .. .. 4 23 9 Drying .. .. .. .. 40 26 20 Printing and photography .. 36 38 39 Pumps and sprayers (except rotary 55 29 13 Electricity and magnetism .. j 151 122 124 pumps) Engines (air, gas, and oil) .. ; 120 49 56 ,, (steam), including rotary 30 25 13 Railways and tramways.. .. 56 81 65 pumps Roads and ways (including road- 14 21 19 (miscellaneous and engine 139 90 59 watering) accessories), including current motors, solar Seed-dressing, chaff-cutting, and 14 13 7 motors, tide motors, threshing wave motors, wind- Seed-sowers .. .. .. 8 4 5 mills miscellaneous I Sewing and knitting .. ..28 29 13 motors | Sheep and cattle (inoluding veteri- 57 26 34 Explosives, firearms, and targets .. 3 5 1 nary appliances) Exterminating (including trapping 41 26 24 Sheep shearing and clipping 11 10 8 animals) i Shop and hotel fittings .. 23 25 19 j Stationery and paper .. 69 62 38 Fencing ... .. .. 26 20 26 „ (strainers) ., .. 9 6 5 Telephony and telegraphy (including 129 128 164 Fibre-dressing (including rope- 22 14 8 phonographs) making) Tobacco .. .. .. 9 11 9 Filters .. .. .. 16 8 3 Fire alarms, escapes, ladders, and 17 23 28 Valves and cocks .. 48 21 29 extinguishers Vehicles .. .. .. 168 175 212 Pood .. .. .. 39 30 34 „ (velocipedes) .. .. 84 45 42 Furnaoes and kilns (including smoke- 26 26 18 Ventilating .. .. ..13 9 6 consumers) Furniture and upholstery, desks, 115 100 63 Washing and cleansing .. ..54 32 27 blinds, curtains, &c. . Water-supplying .. .. ! 25 16 19 Wearing-apparel .. ..54 75 48 Gas-manufacture for lighting, heat- 30 15 8 j Wools and hides .. .. I 19 13 7 ing, or power purposes 1 S Miscellaneous inventions not in j 32 23 18 Harness (inoluding horse,&c., covers) 11 8 8 other classes, as indiarubber- 1 Harvesting and grading .. .. |l 28 20 15 manufacture, fishing-appliances, Heating, and fuel-manufacture .. 108 79 77 &o. * Prior to 1911, milking-machines were included in class " Dairying," but are now a separate class. Note. —Owing to some inventions being classified under more than one heading, the figures will total more than the actual number of applications received.