Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BIRO SWAN Ltd
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BIRO SWAN Ltd
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Filing date
Publication date
Application filed by BIRO SWAN LtdfiledCriticalBIRO SWAN Ltd
Priority to ES205640ApriorityCriticalpatent/ES205640A1/en
Publication of ES205640A1publicationCriticalpatent/ES205640A1/en
Improvements in ball point writing instruments characterized because they consist of what the writing tip or ball. Which replaces the nib in these instruments is housed in a cavity that is formed in a metal tube whose lower diameter is slightly greater than that of the ball which cavity is formed by practicing dents in the tube at various points but all of them at the same height tightening the upper edge of said tube around the ball to prevent its exit being the part of said tube that is tightened around the ball that is above the equator of the same so as not to impede the movement of said ball. (Machine-translation by Google Translate, not legally binding)
ES205640A1952-10-031952-10-03Improvements in punta de bola's writing instruments (Machine-translation by Google Translate, not legally binding)
ExpiredES205640A1
(en)