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Patent-GB-511521.pdf +

Improvements in or relating to stylographic pens +

Patent-GB-514513.pdf +

Improvements in or relating to self-filling fountain pens +

Patent-GB-517388.pdf +

Improvements relating to Fountain Pens +

Patent-GB-520445.pdf +

Improvements in and relating to closures for containers for liquids +

Patent-GB-523717.pdf +

Improvements in or relating to Fountain Pens +