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ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ

รหัส / code คำอธิบาย / code name Version
F22B0021180000 involving two or more upper drums and a single lower drum 1
F22B0021200000 involving sectional or subdivided headers in separate arrangement for each water-tube set 1
F22B0021220000 built-up from water tubes of form other than straight or substantially straight 1
F22B0021240000 bent in serpentine or sinuous form 1
F22B0021260000 bent helically, i.e. coiled 1
F22B0021280000 bent spirally 1
F22B0021300000 bent in U-loop form 1
F22B0021320000 disposed horizontally in abutting connection with upright headers or rising water mains 1
F22B0021340000 built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers 1
F22B0021360000 involving an upper drum or headers mounted at the top of the combustion chamber 1
F22B0021380000 Component parts thereof, e.g. prefabricated panels 1
F22B0021400000 built-up from water tubes arranged in a comparatively long vertical shaft, i.e. tower boilers 1
F22B0023000000 Water-tube boilers built-up from sets of spaced double-walled water tubes of return type in unilaterial abutting connection with a boiler drum or with a header box, i.e. built-up from Field water tubes comprising an inner tube arranged within an outer unilaterally-closed tube 1
F22B0023020000 the water-tube, i.e. Field-tube, sets being horizontal or substantially horizontal 1
F22B0023040000 the water-tube, i.e. Field-tube, sets being vertical or substantially vertical 1
จำนวนรหัสข้อมูล 15 จาก 73902