350
300
TABLE E (Cont.)
Patents registered in Hong Kong 1980
Class B
J
1990
250
200
150
100
اسية
64 65 66 67 68
لسلب
1 2 3 4 5 6 7 8 21 22 23 24 25 26 27 28 29 30 31 32′ 41 42 43 44 60 61 62′′
50
01
02
03
04
05
28 8 8 8 8582 22222
06
07
08
21
Section B Performing Operations.
Physical and chemical processes and apparatus (in general)
Crushing, pulverising or disintegrating; Preparatory treatment of grain for milling
Separation of solid materials using liquids or using pneumatic tables or jigs; Magnetic or electrostatic separation
Centrifugal apparatus or machines for carrying out physical or chemical processes
Spraying and atomising in general; Applying liquids to surfaces in general
Generating or transmitting mechanical vibrations in general Separating solids from solids; Sorting
Cleaning
Mechanical metal working without essentially removing material; Punching metal
Casting; Powder metallurgy
23 Machine tools; Metal working not otherwise provided for
Grinding; Polishing
Hand tools; Portable power driven tools; Manipulators
Hand cutting tools; Cutting machines and devices not specially adapted for particular materials or purposes
Working and preserving wood or similar material; Nailing or stapling machines in general
24
25
26
27
28
Working cement, clay, and stone
29
Working of plastics; Working of substances in a plastic state, in general; Working of substances not otherwise provided for
30
Presses
31
Making paper articles; Working paper
32
Layered products
41
42
43
44
60
Vehicles in general
61
Railways
62
63
64
65
66
Printing; Lining machines; Typewriters; Stamps
Bookbinding; Albums; Files; Special printed matter
Writing and drawing appliances; Bureau accessories Sculpturing; Decorative art; Painting; Casting
Land vehicles for travelling otherwise than on rails Ships or other water-borne vessels' Related equipment
Aircraft; Aviation; Cosmonautics
Conveying; Packing; Storing; Handiing thin or filamentary material Hoisting; Lifting; Hauling
67
Liquid Handling
68
Saddlery; Upholstery
66