Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7140276 | Adjustable wrench An adjustable wrench includes a fixed body having a first end formed with a fixed jaw, a mediate portion formed with a mounting portion and a second end formed with a receiving recess, and a movable body movably mounted on the fixed body and having a first end forme... | 11/28/2006 |
| 7131355 | Lightweight wrench A lightweight, adjustable wrench comprising of a moveable jaw with a reach that is shortened or lengthened with a strap or a cable. The loose end of the strap or cable is secured to the wrench's shank by a cam lock, or similar locking device. Since the strap or cabl... | 11/07/2006 |
| 7096767 | Adjustable wrench An adjustable wrench and method for loosening or tightening a fastener includes a handle member having a fixed jaw segment, a substantially transverse channel therethrough, and a void in communication with the channel. Also, a movable jaw member having a serrated to... | 08/29/2006 |
| 6938525 | One hand pipe wrench A pipe wrench is disclosed, the pipe wrench having a uniquely handy control lever and one-way ratchet for very rapid adjustment of wrench position. The wrench also has a pivoting upper jaw that further aids a user in adjusting and tightening the wrench while using o... | 09/06/2005 |
| 5819608 | Threadless crescent wrench A crescent wrench including a steel ball mounted in a recessed hole in a movable jaw and forced by a spring into engagement with the periphery of a cylindrical control member, which is turned about an axis in an opening in a handle, which has a front end ... | 10/13/1998 |
| 5230264 | Quick adjust wrench A quick-adjust wrench utilizes a sliding jaw which slides with a casing which straddles the wrench shank and captures therein a pawl which rides in a groove extending longitudinally in the shank. A rocker rocks against the pawl when the wrench jaws try to... | 07/27/1993 |
