Ballpoint pen

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Marking instrument

Patent

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Details

D19 43, D19 48, D19 56, D19 57, 1906

Patent

active

D03898660

REFERENCES:
patent: D358420 (1995-05-01), Tseng
patent: D359071 (1995-06-01), Cappe do Baillon
patent: D360433 (1995-07-01), Payne et al.
patent: D363309 (1995-10-01), Carpani et al.
patent: D365364 (1995-12-01), Tseng
patent: D372735 (1996-08-01), Tseng

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