B - Operations – Transporting – 43 – M
Patent
B - Operations, Transporting
43
M
30/48, 120/58
B43M 7/00 (2006.01)
Patent
CA 1259231
ABSTRACT An envelope opener is formed of a rectangular casing having a central transverse guide slot, two cutting disks project into the slot from either side and have mutually interfacing edge portions thereat. A spring resiliently maintains the edge portions of the disks in constant contact in the slot. The guide slot has an upwardly convex bottom surface to reduce friction of an envelope being guided through the slot.
506258
Martineau Francois
Plana Salvio
LandOfFree
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