| Patents for B65D 27 - Envelopes or like essentially-rectangular flexible containers for postal or other purposes having no structural provision for thickness of contents (3,640) |
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| 02/05/1997 | CN1141869A Facing slip |
| 02/05/1997 | CN1141868A Sandwich envelope |
| 02/04/1997 | US5598970 Business form or mailer intermediate |
| 01/30/1997 | WO1997002992A1 Computer printable dual no. 10 envelope assembly |
| 01/29/1997 | EP0755868A1 Combination envelope sealing and tear tape and method of making same |
| 01/29/1997 | CN2246071Y Multifunctional telegram philately envelope |
| 01/23/1997 | DE4434154A1 Letter with included envelope |
| 01/22/1997 | CN2245585Y Convenient envelope |
| 01/15/1997 | EP0753462A1 Mailing envelope |
| 01/15/1997 | EP0753461A1 Tamper evident envelope |
| 01/15/1997 | EP0688288B1 Twice usable envelope |
| 01/08/1997 | CN2244527Y Convenient envelope |
| 12/18/1996 | EP0748743A2 Film display/mailer package |
| 12/17/1996 | US5584580 Tamper-resistant envelope closure |
| 12/11/1996 | CN1137467A Shuangtian Brand window type seal lip self-adhesive envelope and its making method |
| 12/05/1996 | WO1996038344A1 Easy-opening envelopes |
| 12/05/1996 | DE19621785A1 Leak-proof mailing package for medical samples |
| 12/05/1996 | DE19519918A1 Envelope with reusable letter opener |
| 12/05/1996 | CA2220173A1 Easy-opening envelopes |
| 12/04/1996 | CN2241677Y Self-adhesive envelope with seal lip on whick stamp can be stuck |
| 12/04/1996 | CN2241676Y Self-adhesive sealing envelope |
| 11/20/1996 | CN2240496Y Convenient envelope |
| 11/20/1996 | CN1136301A Directly recycled envelope |
| 11/13/1996 | CN2239938Y Strip easy to tear envelope |
| 11/13/1996 | CN2239937Y Envelope |
| 11/06/1996 | CN2239396Y Two-side adhesive stamp sealing envelope |
| 11/05/1996 | US5570835 Self-reply envelope |
| 10/31/1996 | WO1996034370A1 Envelope construction and method of making and dispensing same |
| 10/30/1996 | EP0739293A1 Reusable mailing pocket |
| 10/23/1996 | EP0738924A1 Container for index prints and cassettes |
| 10/23/1996 | CN2238208Y Postal envelope with pressure-sensitive adhesive closure |
| 10/23/1996 | CN2238207Y Envelope with standardized postcode |
| 10/16/1996 | EP0530267B1 Tamper resisting security seal |
| 10/16/1996 | CN2237604Y Convenient self-sticking envelope |
| 10/16/1996 | CN1133242A Sealing method for envelope |
| 10/15/1996 | US5565252 Reinforcement |
| 10/09/1996 | EP0736459A1 Rectangular envelope and process for making it |
| 10/09/1996 | EP0736458A1 Self-adhesive envelope and process for making it |
| 10/09/1996 | CN2237010Y Envelope with glue |
| 10/02/1996 | EP0735421A1 Paper envelope for photographic purposes |
| 10/02/1996 | CN2236455Y Automatically gluing sealer for envelopes |
| 09/18/1996 | EP0731767A1 Directly recycled envelope |
| 09/18/1996 | CN2235416Y Convenient envelopes |
| 09/18/1996 | CN2235415Y Envelope with provisions for repeated re-use |
| 09/18/1996 | CN2235414Y Multi-function standard postal matter bag |
| 09/12/1996 | WO1996027531A1 Continuous strip of detachably interconnected folded products |
| 09/04/1996 | CN2234407Y Envelope with adhesive |
| 09/03/1996 | US5551781 Sterilizable container and method of fabrication |
| 08/28/1996 | CN2233899Y Multi-function envelope |
| 08/20/1996 | CA2065060C Recyclable, reusable, routing envelope |
| 08/15/1996 | WO1996024531A1 Mailing envelope |
| 08/14/1996 | EP0726212A1 Protective packaging system |
| 08/14/1996 | EP0725735A1 Folded single sheet mailer |
| 08/13/1996 | US5546155 DP bag |
| 08/08/1996 | DE19604258A1 Machine printable paper blank for forming envelope |
| 08/07/1996 | EP0683747A4 Printable diskette envelope form. |
| 08/07/1996 | CN2232403Y Easy-tearing envelope |
| 08/01/1996 | WO1996022922A1 Closure and seal device for sealing envelopes and plastic envelope supplied with the same |
| 07/31/1996 | CN2232010Y Convenient envelope |
| 07/24/1996 | CN2231655Y Self-sticking envelope |
| 07/18/1996 | WO1996021598A1 Reusable envelopes |
| 07/18/1996 | CA2209731A1 Reusable envelopes |
| 07/17/1996 | CN1126689A 方便信封 Convenient envelope |
| 07/11/1996 | DE19500109A1 Plastics envelopes for mailing letters |
| 07/09/1996 | US5533810 Document carrier |
| 07/09/1996 | CA2015196C Envelope |
| 07/03/1996 | CN2230284Y Pull-open-type envelope |
| 07/03/1996 | CN2230283Y Envelope convenient for sticking |
| 07/02/1996 | US5532293 Adhesives and envelopes |
| 07/01/1996 | CA2166148A1 Protective packaging system |
| 06/19/1996 | CN2229415Y Easy-to-stick evelope |
| 05/30/1996 | DE19534098A1 Disposable opener for letters and envelopes |
| 05/28/1996 | US5521004 Reflection-reduced, bondable stretched film as window film for envelopes |
| 05/21/1996 | US5518799 Foraminated paper-plastic laminate sheeting |
| 05/15/1996 | WO1996015038A1 Reusable mailing pocket |
| 05/15/1996 | DE4440576A1 Security pouch for transport of valuables |
| 05/15/1996 | CA2181145A1 Reusable mailing pocket |
| 05/14/1996 | US5516040 Two way mailing envelopes |
| 05/09/1996 | WO1996013448A1 Packing paper for food and method of manufacturing same |
| 05/09/1996 | DE19502001A1 Envelope with tear=out strip deformed by micro perforations |
| 05/08/1996 | EP0710203A1 Window-envelope |
| 05/08/1996 | CN1121889A Envelope |
| 05/02/1996 | WO1996012653A1 Improved accordion-fold envelope |
| 05/02/1996 | WO1996012652A1 Quick opening envelope |
| 05/02/1996 | DE4435316A1 Direkt recycelter Briefumschlag Directly recycled envelope |
| 04/25/1996 | WO1996011853A1 Reusable envelope |
| 04/17/1996 | CN2224799Y Convenient envelope |
| 04/17/1996 | CN2224798Y Convenient envelope |
| 04/16/1996 | US5507526 Single layer multi-part mailer assembly |
| 04/11/1996 | WO1996010521A1 Stacking pressure sensitive adhesive envelopes |
| 04/11/1996 | WO1996010520A1 Directly recycled envelope |
| 04/11/1996 | CA2177692A1 Directly recycled envelope |
| 04/10/1996 | CN2224163Y Easy-to-open envelope |
| 04/10/1996 | CN2224162Y Envelope capable of being used two times |
| 04/09/1996 | US5505376 Envelopes |
| 04/02/1996 | US5503328 Multi-use envelope |
| 03/26/1996 | US5501392 Folded single sheet mailer |
| 03/21/1996 | DE4433546A1 Folded shipping carton with fold in flaps |
| 03/19/1996 | US5499757 Easy open, tamper evident envelope |
| 03/14/1996 | WO1996007708A1 Microcapsule-containing cohesive coating |