Apparatus for adhering ring protectors to punch holes on paper

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – For gluing – sealing – etc.

Design Patent

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Design Patent

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29233518

CLAIM:
The ornamental design for an apparatus for adhering ring protectors to punch holes on paper, as shown.

REFERENCES:
patent: D244604 (1977-06-01), Ohta
patent: D251008 (1979-02-01), Kajiwara
patent: D320812 (1991-10-01), Yuen
patent: D324700 (1992-03-01), Shimoo et al.
patent: 5658421 (1997-08-01), Carroll
patent: D405830 (1999-02-01), Mak
patent: D489094 (2004-04-01), Bodum
patent: 6789593 (2004-09-01), Aono et al.

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