Revision history of "File:Patent-GB-345712.pdf"

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Facts about "Patent-GB-345712.pdf"
Application dateJanuary 11, 1930 +
Application number1116/30 +
Assigned toMabie, Todd & Company Limited +
Patent dateApril 2, 1931 +
Patent descriptionMatita meccanica +
Patent number345712 +
Patent titleImprovements in propelling pencils +
Patented bySwan +
Patented inGB +
Priority dateJanuary 11, 1930 +
Same invention ofFile:Patent-CH-148515.pdf +, File:Patent-FR-693093.pdf +, File:Patent-AT-124116.pdf + and File:Patent-BE-369135.pdf +