| 摘要 |
<p>The picture frame has a transparent front and back panel with integrated friction clamps that interact to close the frame around a picture, or has a transparent folded outer glazing that holds an inside assembly around a picture. The frictional clamp and the folded outer glazing and inside assembly allow the frame to be opened and the picture to be replaced. A hanging-bumper device protrudes from the back of the frame either as an integral component of the back panel, outer glazing, or inside assembly, or as a removable attachment.</p> |
