专利检索_ 以用卷筒纸如用压扁的管状卷筒纸制作扁平状即没有为内装物的厚度设置底的矩形信封或纸袋为特征的机械专利检索_ 以用卷筒纸如用压扁的管状卷筒纸制作扁平状即没有为内装物的厚度设置底的矩形信封或纸袋为特征的机械专利检索查询_ 以用卷筒纸如用压扁的管状卷筒纸制作扁平状即没有为内装物的厚度设置底的矩形信封或纸袋为特征的机械专利检索查询分析平台

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
121	Improvement in paper-bag machines	US220810D		US220810A	1879-10-21

122	Improvement in machines for making and cutting paper tubes	US217035D		US217035A	1879-07-01

123	Improvement in paper-tube machines	US209746D		US209746A	1878-11-12

124	Improvement in paper-tube machines	US206637D		US206637A	1878-07-30

125	Improvement in paper-bag machines	US189056D		US189056A	1877-04-03

126	Improvement in paper-bag machines	US188953D		US188953A	1877-03-27

127	Improvement in paper-bag machines	US182341D		US182341A	1876-09-19

128	Improvement in paper x c cop - tube machines	US177167D		US177167A	1876-05-09

129	Improvement in paper-bag machines	US173019D		US173019A	1876-02-01

130	Improvement in paper-bag machines	US166988D		US166988A	1875-08-24

131	Improvement in paper-bag machines	US151258D		US151258A	1874-05-26

132	Improvement in apparatus for making torpedo-envelopes	US150464D		US150464A	1874-05-05

133	Improvement in paper-bag machines	US143925D		US143925A	1873-10-21

134	Improvement in machines for making paper bags	US134580D		US134580A	1873-01-07

135	Improvement in machines f or making cop-tubes	US126192D		US126192A	1872-04-30

136	Improvement in paper-bag machines	US123812D		US123812A	1872-02-20

137	Improvement in paper-bag machines	US119915D		US119915A	1871-10-17

138	Island	US67716D		US67716A	1867-08-13

139	Improvement in machines for making paper bags	US42313D		US42313A	1864-04-12

140	Bag with an access hole in one panel	US116629	1998-07-16	US06148587A	2000-11-21	Gregory E. McDonald; Andrew W. Moehlenbrock; John Carson
A bag includes a first panel with at least one access hole in it, and a second panel without a hole corresponding to the at least one hole of the first panel. Preferably, two holes are present, preferably near the bag mouth. The panels are substantially equal in length. The bag can be easily opened by described bag opening means, without the need for vacuum or air to open the bag. The bag can be used in conjuction with otherwise conventional taped bag systems. A metod of making the bag, a bag opening system, a method of opening the bag, and a packaging system are also disclosed.

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