BE616842A -
Improvements made to the pistons of pressurized fluid cylinders, more specifically to the pistons of hydraulic props for mines
- Google Patents
Improvements made to the pistons of pressurized fluid cylinders, more specifically to the pistons of hydraulic props for mines
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bochumer Eisen HeintzmannfiledCriticalBochumer Eisen Heintzmann
Publication of BE616842ApublicationCriticalpatent/BE616842A/en
BE616842A1961-05-101962-04-25
Improvements made to the pistons of pressurized fluid cylinders, more specifically to the pistons of hydraulic props for mines
BE616842A
(en)