An apparatus for interchanging new and used pen nibs

Bibliographische Detailangaben

1. Verfasser:	ANDREWS NEVILLE EDGAR
Format:	Patent
Sprache:	eng
Schlagworte:	BUREAU ACCESSORIES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS IMPLEMENTS FOR WRITING OR DRAWING PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WRITING OR DRAWING IMPLEMENTS
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