B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
129/35
B32B 1/04 (2006.01) B32B 3/04 (2006.01) B42F 7/00 (2006.01)
Patent
CA 1329904
A cover for transparencies for use in projectors having a hori- zontal image carrying face ABSTRACT In a cover (1) for overhead transparencies (not shown) and con- sisting of a pocket (2) with ring file holes (9) and a non- transparent mask flap (3) to cover the part of the light plate of the projector which is not covered by the pocket (2), the novelty is that the mask flap (3) is hinged to the pocket (2) at the edge which is opposite the edge with the ring file holes (9). This provides a plurality of advantages, e.g. - that the cover is easy to manufacture and therefore inex- pensive, and - that the opposite side of the mask flap may be used as an index leaf for the cover when it is placed by means of the holes (9) in a ring file (not shown) together with several other covers of the same type. (fig. 1 should be published).
603263
Oh Investments Limited
Ridout & Maybee Llp
LandOfFree
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