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Return to File:Patent-CH-36513.pdf.

Retrieved from "http://www.fountainpen.it/File:Patent-CH-36513.pdf"

Facts

... more about "Patent-CH-36513.pdf"

Application date

March 31, 1906 +

Application number

36513 +

Eduard Penkala +

Eduard Penkala +

January 31, 1907 +

Patent description

Porta-mine +

36513 +

Füllbleistift +

CH +

January 30, 1906 +

Same invention of

File:Patent-FR-363394.pdf +, File:Patent-DE-176702.pdf +, File:Patent-GB-190603690.pdf +, File:Patent-AT-31184.pdf +, File:Patent-DK-09144.pdf + and File:Patent-CA-101791.pdf +