|
US2917813A
|
|
Detachable tool holder, especially for grooving files
|
|
US1998300A
|
|
Gas burner
|
|
GB315427A
|
|
A moulding apparatus for the manufacture of pressed stone blocks
|
|
US1941379A
|
|
Mold for artificial stones
|
|
US1767163A
|
|
Molding box
|
|
GB283852A
|
|
Improvements in moulding boxes
|
|
GB281593A
|
|
Improvements in mould boxes for brick or block presses
|
|
GB267948A
|
|
Improvements in or relating to the manufacture of bricks
|
|
US1652883A
|
|
Charger for presses
|
|
GB267949A
|
|
Improvements in or relating to the manufacture of bricks
|
|
US1744352A
|
|
Press
|
|
US1656895A
|
|
Conical crushing mill
|
|
GB271768A
|
|
Improvements in conical crushing mills
|
|
US1856613A
|
|
Process of producing refractory, acid-proof and other ceramically bonded products
|
|
US1744351A
|
|
Process for the manufacture of refractory acid resisting and other products bonded by means of clay
|
