|
2013
|
Invention
|
Adjustable door closer. An adjustable door closer has a hollow pedestal with a first and a second... |
|
2010
|
Invention
|
Brake master cylinder. A brake master cylinder of the invention is to dispose a main oil cylinder... |
|
2009
|
Invention
|
Adjustable hinged door closer. The present invention provides an adjustable hinged door closer, i... |
|
2006
|
Invention
|
Door closer.
A door closer includes a casing having a hydraulic cylinder in which a coupling blo... |
|
2003
|
Invention
|
Hydraulic door closer. A door closer includes a casing having a recess in which a base is receive... |
|
2001
|
Invention
|
Hydraulic door closer. The present invention relates to an improved structure of hydraulic door c... |
|
2000
|
Invention
|
Door closer. A door closer includes casing fixedly fastened to a door frame, a hydraulic cylinder... |
