New developments in equipment pulling out nails or spikes of any kind or form of partitions, frames and wooden objects in general and particularly of drawers and all packaging

摘要

Improvements introduced in the object of patent No. 174325 for further improvements in devices pulling nails or tips of any kind or form of frames walls and wooden objects in general and particularly of drawers and all packaging characterized by a clamping device of the tips intercembiables grip which is based and produced by a piece entering thread on the tool end fixed to a pin in the slot made on the said end in which it is housed and thus also fixed in conditions due to interchangeable tip that is secure and that said pin is invariably attached.