| 摘要 |
<p>1287508 Envelopes AFFILIATED HOSPITAL PRODUCTS Inc 11 Dec 1970 [29 Dec 1969] 59122/70 Heading B6A [Also in Division B8] A sealed envelope 11 comprises a body portion 13 forming a chamber, a flexible closure flap 15 connected with the body portion, and a flexible shear seal 17 disposed beneath the closure flap and secured in folded relationship with the opposite ends secured respectively to the interfacing surfaces of the flap and body portion. As shown, the seal 17 which may be made of paper is secured to the flap 15 and body portion 13 by adhesive.</p> |
