Electrical isolation test device for domestic appliances has connector for making simultaneous connections between three-phase connectors and neutral while measuring resistance between neutral and earth
DE2417154A1
Burster for separating sheets from endless stationery - has endless carrier web with edge guide holes and transverse perforations
DE2412445A1
Continuous production line for duplicate copy sheets or rolls - has twin right angled feed systems and perforating or cutting device
GB1139306A
Improvements in or relating to packs of blank forms
GB909259A
Improvements in or relating to packs of blank forms
DE1088515B
Copy pad
GB189917098A
A New or Improved Process of Producing Photographic Films.
CA67067A
Process of producing and photographic films
GB189615774A
Improved Devices for Detecting the Fraudulent Refilling of Bottles and like Receptacles.
