Revision history of "File:Patent-GB-345712.pdf"
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Facts about "Patent-GB-345712.pdf"
Application date | January 11, 1930 + |
Application number | 1116/30 + |
Assigned to | Mabie, Todd & Company Limited + |
Patent date | April 2, 1931 + |
Patent description | Matita meccanica + |
Patent number | 345712 + |
Patent title | Improvements in propelling pencils + |
Patented by | Swan + |
Patented in | GB + |
Priority date | January 11, 1930 + |
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