DIFF Subgroup
E05F 1/14 with double-acting springs, e.g. for closing and opening or checking and closing
Introduced: September 1968
Full Title
Closers or openers for wings, not otherwise provided for in this subclass > spring-actuated > for swinging wings > with double-acting springs, e.g. for closing and opening or checking and closing
No child classifications to compare. This is a leaf node in both IPC and CPC.