LADDERS (E 04 F 11/00 takes precedence; step-stools
A 47 C 12/00; adaptation of ladders to use on ships B 63 B, to use on aircraft B 64; scaffolding E 04 G) [5,6]
1
/
00
Ladders in general (mounted on undercarriages or vehicles E 06 C 5/00; permanently attached to fixed structures
E 06 C 9/00)
1
/
02
•
with rigid longitudinal member or members
1
/
04
•
•
Ladders for resting against objects, e.g. walls, poles, trees (supports for ladder heads E 06 C 7/48)
1
/
06
•
•
•
in one piece
1
/
08
•
•
•
multi-part
1
/
10
•
•
•
•
Sections fitted end to end
1
/
12
•
•
•
•
extensible, e.g. telescopic
1
/
14
•
•
Ladders capable of standing by themselves
1
/
16
•
•
•
with struts which rest on the ground (with struts rigid with the ladder E 06 C 1/24; having platforms E 06 C 1/39)
1
/
18
•
•
•
•
with supporting struts formed as ladders
1
/
20
•
•
•
•
with supporting struts formed as poles
1
/
22
•
•
•
•
•
with extensible, e.g. telescopic, ladder parts or struts
1
/
24
•
•
•
Free-standing ladders
1
/
26
•
•
•
•
in one piece
1
/
28
•
•
•
•
multi-part (with movable supporting struts formed as ladders E 06 C 1/18
)
1
/
30
•
•
•
•
•
extensible, e.g. telescopic
1
/
32
•
•
Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
1
/
34
•
•
Ladders attachable to structures, such as windows, cornices, poles, or the like (ladders permanently fastened to buildings E 06 C 9/00)
1
/
36
•
•
•
Ladders suspendable by hooks or the like
1
/
38
•
•
Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
1
/
383
•
•
•
Foldable ladders in which the longitudinal members are brought together on folding
1
/
387
•
•
•
having tip-up steps
1
/
39
•
•
•
Ladders having platforms; Ladders changeable into platforms (platforms for use on ladders E 06 C 7/16)
1
/
393
•
•
•
•
Ladders having platforms foldable with the ladder
1
/
397
•
•
•
characterised by having wheels, rollers, or runners
1
/
52
•
with non-rigid longitudinal members
1
/
54
•
•
of the lazy-tongs type
1
/
56
•
•
Rope or chain ladders
1
/
58
•
with both rigid and non-rigid longitudinal members
