|
GB191206414A
|
|
Improvements in "Hack Saw" Machines.
|
|
GB190826321A
|
|
A New or Improved Automatic and Autographic Testing Machine, chiefly for use in Testing the Cutting Efficiency of Tool Steel.
|
|
GB190701487A
|
|
Improvements in Appliances for Automatically Operating the Shutters of Photographic Cameras.
|
|
GB190626323A
|
|
Improvements in or relating to Belt Fasteners.
|
|
GB190603927A
|
|
A Machine for Testing and Indicating the Efficiency of Files.
|
|
GB190518710A
|
|
A New or Improved Construction of Belt or like Fastener.
|
|
GB190315093A
|
|
Improvements in Machines for Removing Gates or Runners from Castings.
|
|
GB190108753A
|
|
Improvements in Hack Saw Machines for Metal.
|
|
US691139A
|
|
Sawing-machine.
|
|
GB190015582A
|
|
Improvements in Coin Freed Shooting Games.
|
|
CA302702A
|
|
Hardness testing method and hardening of metals
|
|
CA245078A
|
|
Method and means for testing the hardness of metals
|
